More translations of c comments, now also include files!

29 files changed, 265 insertions, 271 deletions

diff --git a/source/blender/blenloader/intern/genfile.c b/source/blender/blenloader/intern/genfile.c
index 0a5eca85c3a..f985879de32 100644
--- a/source/blender/blenloader/intern/genfile.c
+++ b/source/blender/blenloader/intern/genfile.c
@@ -122,6 +122,7 @@ DONE:
  - pointer conversion (32-64 bits)
 
 IMPORTANT:
+ - do not use #defines in structs for array lenghts, this cannot be read by the dna functions
  - do not use uint, but unsigned int instead, ushort and ulong are allowed
  - only use a long in Blender if you want this to be the size of a pointer. so it is
    32 bits or 64 bits, dependant at the cpu architecture
diff --git a/source/blender/makesdna/DNA_ID.h b/source/blender/makesdna/DNA_ID.h
index f99de9106a8..e653f896e36 100644
--- a/source/blender/makesdna/DNA_ID.h
+++ b/source/blender/makesdna/DNA_ID.h
@@ -46,7 +46,7 @@ extern "C" {
 struct Library;
 struct FileData;
 
-/* let op: Sequence heeft identiek begin. */
+/* watch it: Sequence has identical beginning. */
 /**
  * ID is the first thing included in all serializable types. It
  * provides a common handle to place all data in double-linked lists.
@@ -66,14 +66,14 @@ typedef struct ID {
 } ID;
 
 /**
- * ??
+ * For each library file used, a Library struct is added to Main
  */
 typedef struct Library {
 	ID id;
 	ID *idblock;
 	struct FileData *filedata;
 	char name[160];
-	int tot, pad;		/* tot, idblock en filedata zijn voor lezen en schrijven */
+	int tot, pad;		/* tot, idblock and filedata are only fo read and write */
 } Library;
 
 /**
@@ -129,8 +129,7 @@ typedef struct Library {
 
 #define IPO_CO		MAKE_ID2('C', 'O')	/* NOTE! This is not an ID, but is needed for g.sipo->blocktype */
 
-/* id->flag: eerste 8 bits altijd op nul zetten bij inlezen */
-/* (always zero the first 8 bits when reading a file) */
+/* id->flag: set frist 8 bits always at zero while reading */
 #define LIB_LOCAL		0
 #define LIB_EXTERN		1
 #define LIB_INDIRECT	2
@@ -142,7 +141,7 @@ typedef struct Library {
 
 #define LIB_NEW			256
 #define LIB_FAKEUSER	512
-/* vrije testflag */
+/* free test flag */
 #define LIB_DOIT		1024
 
 #ifdef __cplusplus
diff --git a/source/blender/makesdna/DNA_camera_types.h b/source/blender/makesdna/DNA_camera_types.h
index 61286c846b9..aa126ff6f5d 100644
--- a/source/blender/makesdna/DNA_camera_types.h
+++ b/source/blender/makesdna/DNA_camera_types.h
@@ -48,9 +48,9 @@ typedef struct Camera {
 	
 	short type, flag, drawzoom, hold;
 	float clipsta, clipend;
-	float netsta, netend;			/* network camera */
+	float netsta, netend;			/* network camera (obsolete -ton) */
 	float lens, drawsize;
-	float hololen, hololen1;
+	float hololen, hololen1; /* obsolete (ton) */
 	
 	struct Ipo *ipo;
 	
diff --git a/source/blender/makesdna/DNA_curve_types.h b/source/blender/makesdna/DNA_curve_types.h
index 55d38171a10..b7bc03364ba 100644
--- a/source/blender/makesdna/DNA_curve_types.h
+++ b/source/blender/makesdna/DNA_curve_types.h
@@ -131,7 +131,7 @@ typedef struct Curve {
 	/* default */
 	short resolu, resolv;
 	
-	/* font stuk */
+	/* font part */
 	short len, lines, pos, spacemode;
 	float spacing, linedist, shear, fsize;
 	float xof, yof;
diff --git a/source/blender/makesdna/DNA_effect_types.h b/source/blender/makesdna/DNA_effect_types.h
index 4d843772ce9..00d0546f1ec 100644
--- a/source/blender/makesdna/DNA_effect_types.h
+++ b/source/blender/makesdna/DNA_effect_types.h
@@ -34,11 +34,11 @@
 #ifndef DNA_EFFECT_TYPES_H
 #define DNA_EFFECT_TYPES_H
 
-/* DENK ERAAN: NIEUWE EFFECTEN OOK IN DE WRITEFILE.C IVM DNA!!! */
+/* don't forget, new effects also in writefile.c for dna!!! */
 
 #define PAF_MAXMULT		4
 
-	/* paf->flag (bitje 0 vrij houden ivm compatibility) */
+	/* paf->flag (keep bit 0 free for compatibility) */
 #define PAF_BSPLINE		2
 #define PAF_STATIC		4
 #define PAF_FACE		8
diff --git a/source/blender/makesdna/DNA_ika_types.h b/source/blender/makesdna/DNA_ika_types.h
index 9024672fa01..2ddbc4ed4a3 100644
--- a/source/blender/makesdna/DNA_ika_types.h
+++ b/source/blender/makesdna/DNA_ika_types.h
@@ -1,8 +1,10 @@
 /**
  * blenlib/DNA_ika_types.h (mar-2001 nzc)
  *
- * Old ika types. These will be superceded by Reevan's stuff, soon (I
- * hope).
+ * Old ika types. These have been superceded by Reevan's stuff
+ * (armatures and bones)
+ *
+ * Can be removed! (ton)
  *
  * $Id$ 
  *
@@ -46,9 +48,9 @@ struct Ipo;
 typedef struct Deform {
 	struct Object *ob;
 	short flag, partype;
-	int par1, par2, par3;	/* kunnen vertexnrs zijn */
+	int par1, par2, par3;	/* can be vertexnrs */
 	float imat[4][4], premat[4][4], postmat[4][4];
-	float vec[3];	/* als partype==LIMB, voor distfunc */
+	float vec[3];	/* when partype==LIMB, for distfunc */
 	float fac, dist, pad;
 	
 } Deform;
@@ -67,12 +69,12 @@ typedef struct Ika {
 	short partype, flag, iter, lastfra;
 	
 	ListBase limbbase;
-	float eff[3], effg[3], effn[3];	/* current, global en (local)wanted */
+	float eff[3], effg[3], effn[3];	
 	float mem, slow, toty, totx, xyconstraint;
 	
 	struct Ipo *ipo;
 	struct Object *parent;
-	int par1, par2, par3;	/* kunnen vertexnrs zijn */
+	int par1, par2, par3;	
 
 	int totdef;
 	Deform *def;
diff --git a/source/blender/makesdna/DNA_image_types.h b/source/blender/makesdna/DNA_image_types.h
index a2dfdf00fd8..256d69456e8 100644
--- a/source/blender/makesdna/DNA_image_types.h
+++ b/source/blender/makesdna/DNA_image_types.h
@@ -52,12 +52,12 @@ typedef struct Image {
 	short ok, flag;
 	short lastframe, lastquality;
 
-	/* texture pagina */
+	/* texture page */
 	short tpageflag, totbind;
 	short xrep, yrep;
 	short twsta, twend;
 	unsigned int bindcode;
-	unsigned int *repbind;	/* om subregio's te kunnen repeaten */
+	unsigned int *repbind;	/* for repeat of parts of images */
 	
 	struct PackedFile * packedfile;
 
diff --git a/source/blender/makesdna/DNA_ipo_types.h b/source/blender/makesdna/DNA_ipo_types.h
index 1ee62ac2640..69dcef38b57 100644
--- a/source/blender/makesdna/DNA_ipo_types.h
+++ b/source/blender/makesdna/DNA_ipo_types.h
@@ -270,7 +270,7 @@ typedef short IPO_Channel;
 #define IPO_FLOAT		4
 #define IPO_DOUBLE		5
 #define IPO_FLOAT_DEGR	6
-/* zeer speciaal geval in keys */
+/* very special case, in keys */
 #define IPO_BEZTRIPLE	100
 #define IPO_BPOINT		101
 
diff --git a/source/blender/makesdna/DNA_lamp_types.h b/source/blender/makesdna/DNA_lamp_types.h
index 0722c5d8cb6..3e3ca20134a 100644
--- a/source/blender/makesdna/DNA_lamp_types.h
+++ b/source/blender/makesdna/DNA_lamp_types.h
@@ -56,7 +56,7 @@ typedef struct Lamp {
 	float clipsta, clipend, shadspotsize;
 	float bias, soft;
 	
-	/* texact is voor buttons */
+	/* texact is for buttons */
 	short texact, shadhalostep;
 	
 	struct MTex *mtex[8];
diff --git a/source/blender/makesdna/DNA_material_types.h b/source/blender/makesdna/DNA_material_types.h
index d21b27897ed..3789a296120 100644
--- a/source/blender/makesdna/DNA_material_types.h
+++ b/source/blender/makesdna/DNA_material_types.h
@@ -43,12 +43,12 @@ struct MTex;
 struct Ipo;
 struct Material;
 
-/* LET OP: type veranderen? ook in ipo.h doen */
+/* WATCH IT: change type? also make changes in ipo.h  */
 
 typedef struct Material {
 	ID id;
 	
-	short colormodel, lay;		/* lay: voor dynamics */
+	short colormodel, lay;		/* lay: for dynamics (old engine, until 2.04) */
 	float r, g, b;
 	float specr, specg, specb;
 	float mirr, mirg, mirb;
@@ -65,7 +65,7 @@ typedef struct Material {
 	short flarec, starc, linec, ringc;
 	float hasize, flaresize, subsize, flareboost;
 	
-	/* onderstaand is voor buttons en render*/
+	/* for buttons and render*/
 	char rgbsel, texact, pr_type, septex;
 	short pr_back, pr_lamp;
 
diff --git a/source/blender/makesdna/DNA_mesh_types.h b/source/blender/makesdna/DNA_mesh_types.h
index 6c04a243020..af5f98cfe95 100644
--- a/source/blender/makesdna/DNA_mesh_types.h
+++ b/source/blender/makesdna/DNA_mesh_types.h
@@ -76,7 +76,7 @@ typedef struct TFace {
 	/* this one gets interpreted as a image in texture.c  */
 	void *tpage;
 
-	float uv[4][2];		/* als je dit wijzigt: ook fie set_correct_uv editmesh.c, ook andere plekken maken gebruik van de lengte van dit blok */
+	float uv[4][2];		/* when you change this: also do function set_correct_uv in editmesh.c, and there are more locations that use the size of this part */
 	unsigned int col[4];
 	char flag, transp;
 	short mode, tile, pad;
@@ -132,7 +132,7 @@ typedef struct Mesh {
 	struct Mesh *texcomesh;
 	float *orco;
 	
-	struct OcInfo *oc;		/* niet in file */
+	struct OcInfo *oc;		/* not written in file */
 	void *sumohandle;
     
 	int totvert, totface;
@@ -168,7 +168,7 @@ typedef struct Mesh {
 #define ME_SMESH		64
 #define ME_SUBSURF		128
 
-/* puno (mface) */
+/* puno = vertexnormal (mface) */
 #define ME_FLIPV1		1
 #define ME_FLIPV2		2
 #define ME_FLIPV3		4
@@ -187,8 +187,6 @@ typedef struct Mesh {
 /* flag (mface) */
 #define ME_SMOOTH		1
 
-/* tface->mode (beetje compatible met PMD formaat) */
-/* sharedvert bepaalt hoe de PSX versie wordt, sharedcol is vertexkleur en puno */
 
 #define TF_DYNAMIC		1
 /* #define TF_INVISIBLE	2 */
diff --git a/source/blender/makesdna/DNA_object_types.h b/source/blender/makesdna/DNA_object_types.h
index 4083394c1c9..32be260b450 100644
--- a/source/blender/makesdna/DNA_object_types.h
+++ b/source/blender/makesdna/DNA_object_types.h
@@ -69,7 +69,7 @@ typedef struct Object {
 	ID id;
 
 	short type, partype;
-	int par1, par2, par3;	/* kunnen vertexnrs zijn */
+	int par1, par2, par3;	/* can be vertexnrs */
 	char parsubstr[32];	/* String describing subobject info */
 	void *pardata;
 	struct Object *parent, *track;
@@ -89,28 +89,28 @@ typedef struct Object {
 	ListBase defbase;
 	struct Material **mat;
 	
-	/* rot en drot moeten achterelkaar! (transform('r' en 's')) */
+	/* rot en drot have to be together! (transform('r' en 's')) */
 	float loc[3], dloc[3], orig[3];
 	float size[3], dsize[3];
 	float rot[3], drot[3];
 	float quat[4], dquat[4];
 	float obmat[4][4];
 	float parentinv[4][4];
-	float imat[4][4];	/* voor bij render, tijdens simulate, tijdelijk: ipokeys van transform  */
+	float imat[4][4];	/* for during render, old game engine, temporally: ipokeys of transform  */
 	
-	unsigned int lay;				/* kopie van Base */
-	short flag;			/* kopie van Base */
-	short colbits;		/* nul==van obdata */
+	unsigned int lay;				/* copy of Base */
+	short flag;			/* copy of Base */
+	short colbits;		/* when zero, from obdata */
 	char transflag, ipoflag;
 	char trackflag, upflag;
-	short ipowin, scaflag;	/* ipowin: blocktype laatste ipowindow */
+	short ipowin, scaflag;	/* ipowin: blocktype last ipowindow */
 	short scavisflag, boundtype;
 	
 	short dupon, dupoff, dupsta, dupend;
 
 	float sf, ctime;
 	
-	/* tijdens realtime */
+	/* during realtime */
 
 	/* note that inertia is only called inertia for historical reasons
 	 * and is not changed to avoid DNA surgery. It actually reflects the 
@@ -129,7 +129,7 @@ typedef struct Object {
 	float rdamping, sizefac;
 	
 	char dt, dtx;
-	char totcol;	/* kopie van mesh of curve of meta */
+	char totcol;	/* copy of mesh or curve or meta */
 	char actcol;
 	
 	ScriptLink scriptlink;
diff --git a/source/blender/makesdna/DNA_oops_types.h b/source/blender/makesdna/DNA_oops_types.h
index 52130c113cc..3b03af4dfd9 100644
--- a/source/blender/makesdna/DNA_oops_types.h
+++ b/source/blender/makesdna/DNA_oops_types.h
@@ -44,7 +44,7 @@ struct ID;
 typedef struct Oops {
 	struct Oops *next, *prev;
 	short type, flag, dt, hide;
-	float x, y;		/* linksonder */
+	float x, y;		/* left - bottom */
 	float dx, dy;	/* shuffle */
 	struct ID *id;
 	ListBase link;
@@ -56,7 +56,7 @@ typedef struct OopsLink {
 	struct OopsLink *next, *prev;
 	short type, flag;
 	ID **idfrom;
-	Oops *to, *from;	/* from is voor temp */
+	Oops *to, *from;	/* from is for temp */
 	float xof, yof;
 	char name[12];
 } OopsLink;
diff --git a/source/blender/makesdna/DNA_radio_types.h b/source/blender/makesdna/DNA_radio_types.h
index 29fd2bf082d..adaa4e6e159 100644
--- a/source/blender/makesdna/DNA_radio_types.h
+++ b/source/blender/makesdna/DNA_radio_types.h
@@ -40,12 +40,12 @@
 
 typedef struct Radio {
 	short hemires, maxiter;
-	short drawtype, flag;			/* bit 0 en 1: limits laten zien */
+	short drawtype, flag;			/* bit 0 and 1: show limits */
 	short subshootp, subshoote, nodelim, maxsublamp;
-	short pama, pami, elma, elmi;	/* patch en elem limits */
+	short pama, pami, elma, elmi;	/* patch and elem limits */
 	int maxnode;
 	float convergence;
-	float radfac, gamma;		/* voor afbeelden */
+	float radfac, gamma;		/* for display */
 	
 } Radio;
 
diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index 3cc676587be..bd5f1d80f4c 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -82,10 +82,9 @@ typedef struct AviCodecData {
 typedef struct RenderData {
 	struct AviCodecData *avicodecdata;
 	
-	/* hoe gaat tijd gedefinieerd worden? */
-	short cfra, sfra, efra;	/* plaatjes */
+	short cfra, sfra, efra;	/* fames as in 'images' */
 	short images, framapto, flag;
-	float ctime;			/* hiermee rekenen? */
+	float ctime;			/* use for calcutions */
 	float framelen, blurfac;
 
 	/** For UR edge rendering: give the edges this colour */
@@ -98,7 +97,7 @@ typedef struct RenderData {
 	short pad[3];
 
 	short size, maximsize;	/* size in %, max in Kb */
-	/* uit buttons: */
+	/* from buttons: */
 	/**
 	 * The desired number of pixels in the x direction
 	 */
@@ -217,8 +216,8 @@ typedef struct Scene {
 	float cursor[3];
 	unsigned int lay;
 
-	/* enkele realtime vars */
-	struct FreeCamera *fcam;
+	/* some realtime vars */
+	struct FreeCamera *fcam;  /* old, can be removed (ton) */
 	
 	void *ed;
 	struct Radio *radio;
@@ -256,7 +255,7 @@ typedef struct Scene {
 #define R_PANORAMA		0x0400
 #define R_MOVIECROP		0x0800
 #define R_COSMO			0x1000
-/* deze verschillen tussen IrisGL en OpenGL!!! */
+/* these difines were different between IrisGL and OpenGL!!! */
 #define R_ODDFIELD		0x2000
 #define R_MBLUR			0x4000
 #define R_UNIFIED       0x8000
@@ -303,21 +302,21 @@ typedef struct Scene {
 #define R_RENDERING		16
 #define R_ANIMRENDER	32
 
-/* vlakren->flag */
+/* vlakren->flag (vlak = face in dutch) */
 #define R_SMOOTH		1
 #define R_VISIBLE		2
 #define R_NOPUNOFLIP	8
 #define R_CMAPCODE		16
 #define R_FACE_SPLIT	32
 
-/* vertren->texofs (texcoordinaten offset vanaf vertren->orco */
+/* vertren->texofs (texcoordinate offset relative to vertren->orco */
 #define R_UVOFS3	1
 
 /* **************** SCENE ********************* */
 #define RAD_PHASE_PATCHES	1
 #define RAD_PHASE_FACES		2
 
-/* base->flag en ob->flag */
+/* base->flag and ob->flag */
 #define BA_WASSEL			2
 #define BA_PARSEL			4
 #define BA_WHERE_UPDATE		8
diff --git a/source/blender/makesdna/DNA_screen_types.h b/source/blender/makesdna/DNA_screen_types.h
index 7fee3f7ca17..2eb315e9f98 100644
--- a/source/blender/makesdna/DNA_screen_types.h
+++ b/source/blender/makesdna/DNA_screen_types.h
@@ -48,7 +48,7 @@ typedef struct bScreen {
 	struct Scene *scene;
 	short startx, endx, starty, endy;	/* framebuffer coords */
 	short sizex, sizey;
-	short scenenr, screennr;			/* alleen voor pupmenu */
+	short scenenr, screennr;			/* only for pupmenu */
 	short full, rt;
 	short mainwin, winakt;
 } bScreen;
@@ -63,7 +63,7 @@ typedef struct ScrVert {
 typedef struct ScrEdge {
 	struct ScrEdge *next, *prev;
 	ScrVert *v1, *v2;
-	short border;			/* 1 als op rand screen */
+	short border;			/* 1 when at edge of screen */
 	short flag;
 	int pad;
 } ScrEdge;
@@ -81,12 +81,12 @@ typedef unsigned short dna_ushort_fix;
 typedef struct ScrArea {
 	struct ScrArea *next, *prev;
 	ScrVert *v1, *v2, *v3, *v4;
-	bScreen *full;			/* als area==full, dit is de parent */
+	bScreen *full;			/* if area==full, this is the parent */
 	float winmat[4][4];
 	rcti totrct, headrct, winrct;
 
 	short headwin, win;
-	short headertype;		/* 0=niets, 1= down, 2= up */
+	short headertype;		/* 0=no header, 1= down, 2= up */
 	char spacetype, butspacetype;	/* SPACE_...  */
 	short winx, winy;		/* size */
 	char head_swap, head_equal;
@@ -101,7 +101,7 @@ typedef struct ScrArea {
 
 #define MAXWIN		128
 
-/* Als je EDGEWIDTH verandert, ook globale array edcol[] goedzetten */
+/* If you change EDGEWIDTH, also do the global arrat edcol[]  */
 #define EDGEWIDTH	5
 #define EDGEWIDTH2	(2)
 #define AREAGRID	4
diff --git a/source/blender/makesdna/DNA_sequence_types.h b/source/blender/makesdna/DNA_sequence_types.h
index d7d72788c7a..f3827f5e0b2 100644
--- a/source/blender/makesdna/DNA_sequence_types.h
+++ b/source/blender/makesdna/DNA_sequence_types.h
@@ -78,7 +78,7 @@ typedef struct PluginSeq {
 } PluginSeq;
 
 
-/* LET OP: eerste stuk identiek aan ID (ivm ipo's) */
+/* WATCH IT: first part identical to ID (for use in ipo's) */
 
 typedef struct Sequence {
 
@@ -105,7 +105,7 @@ typedef struct Sequence {
 	
 	PluginSeq *plugin;
 
-	/* pointers voor effecten: */
+	/* pointers for effects: */
 	struct Sequence *seq1, *seq2, *seq3;
 	
 	/* meta */
@@ -138,7 +138,7 @@ typedef struct Editing {
 #define SEQ_OVERLAP		8
 #define SEQ_FILTERY		16
 
-/* seq->type LET OP BITJE 3!!! */
+/* seq->type WATCH IT: BIT 3!!! */
 #define SEQ_IMAGE		0
 #define SEQ_META		1
 #define SEQ_SCENE		2
diff --git a/source/blender/makesdna/DNA_space_types.h b/source/blender/makesdna/DNA_space_types.h
index 88803e9e983..f34979486b2 100644
--- a/source/blender/makesdna/DNA_space_types.h
+++ b/source/blender/makesdna/DNA_space_types.h
@@ -96,7 +96,7 @@ typedef struct SpaceButs {
 	int pad2;
 	View2D v2d;
 	
-	short mainb, menunr;	/* texnr en menunr moeten shorts blijven */
+	short mainb, menunr;	/* texnr and menunr have to remain shorts */
 	short pin, mainbo;	
 	void *lockpoin;
 	
@@ -186,7 +186,7 @@ typedef struct SpaceImage {
 	
 	struct Image *image;
 	float zoom;
-	float pad2; /* MAART: is this needed? Ton: yes, padding with 8 bytes aligned  */
+	float pad2; /* padding is with 8 bytes aligned  */
 	short mode, pin;
 	short imanr, curtile;
 	short xof, yof;
@@ -364,7 +364,7 @@ typedef struct SpaceImaSel {
 #define BUTS_ACT_ACT		128
 #define BUTS_ACT_LINK		256
 
-/* deze getallen ook invullen in blender.h SpaceFile: struct dna herkent geen defines */
+/* these values need to be hardcoded in blender.h SpaceFile: struct dna does not recognize defines */
 #define FILE_MAXDIR			160
 #define FILE_MAXFILE		80
 
@@ -396,8 +396,8 @@ typedef struct SpaceImaSel {
 #define MOVIEFILE			32
 #define PYSCRIPTFILE		64
 
-#define SCROLLH	16			/* hoogte scrollbar */
-#define SCROLLB	16			/* breedte scrollbar */
+#define SCROLLH	16			/* height scrollbar */
+#define SCROLLB	16			/* width scrollbar */
 
 /* SpaceImage->mode */
 #define SI_TEXTURE		0
diff --git a/source/blender/makesdna/DNA_texture_types.h b/source/blender/makesdna/DNA_texture_types.h
index 9a222850519..32559fe7d80 100644
--- a/source/blender/makesdna/DNA_texture_types.h
+++ b/source/blender/makesdna/DNA_texture_types.h
@@ -179,7 +179,7 @@ typedef struct Tex {
 #define TEX_FLIPBLEND	2
 #define TEX_NEGALPHA	4
 
-/* extend (begint bij 1 ivm backward comp.) */
+/* extend (starts with 1 because of backward comp.) */
 #define TEX_EXTEND		1
 #define TEX_CLIP		2
 #define TEX_REPEAT		3
diff --git a/source/blender/makesdna/DNA_view3d_types.h b/source/blender/makesdna/DNA_view3d_types.h
index 1cae50f58a6..da5c8736a08 100644
--- a/source/blender/makesdna/DNA_view3d_types.h
+++ b/source/blender/makesdna/DNA_view3d_types.h
@@ -93,7 +93,7 @@ typedef struct View3D {
 	float lens, grid, near, far;
 	float ofs[3], cursor[3];
 	
-	short mx, my;	/* moeten achter elkaar blijven staan ivm als pointer doorgeven */
+	short mx, my;	/* have to remain together, because used as single pointer */
 	short mxo, myo;
 
 	short gridlines, viewbut;
diff --git a/source/blender/makesdna/DNA_wave_types.h b/source/blender/makesdna/DNA_wave_types.h
index e8f2607cee4..f499004fff8 100644
--- a/source/blender/makesdna/DNA_wave_types.h
+++ b/source/blender/makesdna/DNA_wave_types.h
@@ -38,6 +38,10 @@
 
 struct Ipo;
 
+
+/* a Wave has never been implemented... it was meant as a 'free' mathematical
+  deformation object type (ton) */
+
 typedef struct Wave {
 	ID id;
 	
diff --git a/source/blender/makesdna/intern/makesdna.c b/source/blender/makesdna/intern/makesdna.c
index 0be86f53f56..4ff94472df2 100644
--- a/source/blender/makesdna/intern/makesdna.c
+++ b/source/blender/makesdna/intern/makesdna.c
@@ -131,14 +131,14 @@ int maxdata= 500000, maxnr= 50000;
 int nr_names=0;
 int nr_types=0;
 int nr_structs=0;
-char **names, *namedata;		/* op adres names[a] staat string a */
-char **types, *typedata;		/* op adres types[a] staat string a */
-short *typelens;				/* op typelens[a] staat de lengte van type a */
+char **names, *namedata;		/* at adress names[a] is string a */
+char **types, *typedata;		/* at adress types[a] is string a */
+short *typelens;				/* at typelens[a] is de length of type a */
 short *alphalens;			    /* contains sizes as they are calculated on the alpha */
-short **structs, *structdata;	/* op sp= structs[a] staat eerste adres structdefinitie
-								   sp[0] is typenummer
-								   sp[1] is aantal elementen
-								   sp[2] sp[3] is typenr,  namenr (enz) */
+short **structs, *structdata;	/* at sp= structs[a] is the first adress of a struct definition
+								   sp[0] is type number
+								   sp[1] is amount of elements
+								   sp[2] sp[3] is typenr,  namenr (etc) */
 /*
  * debugSDNA:
  *  - 0 = no output, except errors
@@ -225,7 +225,7 @@ int add_type(char *str, int len)
 	
 	if(str[0]==0) return -1;
 	
-	/* zoek typearray door */
+	/* search through type array */
 	for(nr=0; nr<nr_types; nr++) {
 		if(strcmp(str, types[nr])==0) {
 			if (len) {
@@ -236,7 +236,7 @@ int add_type(char *str, int len)
 		}
 	}
 	
-	/* nieuw type appenden */
+	/* append new type */
 	if(nr_types==0) cp= typedata;
 	else {
 		cp= types[nr_types-1]+strlen(types[nr_types-1])+1;
@@ -356,14 +356,14 @@ int add_name(char *str)
 		name = str;
 	}
 	
-	/* zoek name array door */
+	/* search name array */
 	for(nr=0; nr<nr_names; nr++) {
 		if(strcmp(name, names[nr])==0) {
 			return nr;
 		}
 	}
 	
-	/* nieuw type appenden */
+	/* append new type */
 	if(nr_names==0) cp= namedata;
 	else {
 		cp= names[nr_names-1]+strlen(names[nr_names-1])+1;
@@ -415,7 +415,7 @@ int preprocess_include(char *maindata, int len)
 	memcpy(temp, maindata, len);
 	
 	// remove all c++ comments
-	/* alle enters/tabs/etc vervangen door spaties */
+	/* replace all enters/tabs/etc with spaces */
 	cp= temp;
 	a= len;
 	comment = 0;
@@ -430,7 +430,7 @@ int preprocess_include(char *maindata, int len)
 	}
 	
 
-	/* data uit temp naar maindata kopieeren, verwijder commentaar en dubbele spaties */
+	/* data from temp copy to maindata, remove comments and double spaces */
 	cp= temp;
 	md= maindata;
 	newlen= 0;
@@ -447,10 +447,10 @@ int preprocess_include(char *maindata, int len)
 			cp[0]=cp[1]= 32;
 		}
 
-		/* niet kopieeren als: */
+		/* do not copy when: */
 		if(comment);
 		else if( cp[0]==' ' && cp[1]==' ' );
-		else if( cp[-1]=='*' && cp[0]==' ' );	/* pointers met spatie */
+		else if( cp[-1]=='*' && cp[0]==' ' );	/* pointers with a space */
 		else {
 			md[0]= cp[0];
 			md++;
@@ -498,8 +498,8 @@ void *read_file_data(char *filename, int *len_r)
 
 int convert_include(char *filename)
 {
-	/* lees includefile, sla structen over die op regel ervoor '#' hebben.
-	   sla alle data op in tijdelijke arrays.
+	/* read include file, skip structs with a '#' before it.
+	   store all data in temporal arrays.
 	*/
 	int filelen, count, overslaan, slen, type, name, strct;
 	short *structpoin, *sp;
@@ -514,12 +514,12 @@ int convert_include(char *filename)
 	filelen= preprocess_include(maindata, filelen);
 	mainend= maindata+filelen-1;
 
-	/* we zoeken naar '{' en dan terug naar 'struct' */
+	/* we look for '{' and then back to 'struct' */
 	count= 0;
 	overslaan= 0;
 	while(count<filelen) {
 		
-		/* code voor struct overslaan: twee hekjes. (voor spatie zorgt preprocess) */
+		/* code for skipping a struct: two hashes. (preprocess added a space) */
 		if(md[0]=='#' && md[1]==' ' && md[2]=='#') {
 			overslaan= 1;
 		}
@@ -532,10 +532,10 @@ int convert_include(char *filename)
 			else {
 				if(md[-1]==' ') md[-1]= 0;
 				md1= md-2;
-				while( *md1!=32) md1--;		/* naar begin woord */
+				while( *md1!=32) md1--;		/* to beginning of word */
 				md1++;
 				
-				/* structnaam te pakken, als... */
+				/* we've got a struct name when... */
 				if( strncmp(md1-7, "struct", 6)==0 ) {
 
 					
@@ -545,7 +545,7 @@ int convert_include(char *filename)
 
 					if (debugSDNA > 1) printf("\t|\t|-- detected struct %s\n", types[strct]);
 
-					/* eerst overal keurige strings van maken */
+					/* first lets make it all nice strings */
 					md1= md+1;
 					while(*md1 != '}') {
 						if( ((long)md1) > ((long)mainend) ) break;
@@ -554,17 +554,17 @@ int convert_include(char *filename)
 						md1++;
 					}
 					
-					/* types en namen lezen tot eerste karakter niet '}' */
+					/* read types and names until first character that is not '}' */
 					md1= md+1;
 					while( *md1 != '}' ) {
 						if( ((long)md1) > ((long)mainend) ) break;
 						
-						/* als er 'struct' of 'unsigned' staat, overslaan */
+						/* skip when it says 'struct' or 'unsigned' */
 						if(*md1) {
 							if( strncmp(md1, "struct", 6)==0 ) md1+= 7;
 							if( strncmp(md1, "unsigned", 6)==0 ) md1+= 9;
 							
-							/* type te pakken! */
+							/* we've got a type! */
 							type= add_type(md1, 0);
 
 							if (debugSDNA > 1) printf("\t|\t|\tfound type %s (", md1);
@@ -572,12 +572,12 @@ int convert_include(char *filename)
 							md1+= strlen(md1);
 
 							
-							/* doorlezen tot ';' */
+							/* read until ';' */
 							while( *md1 != ';' ) {
 								if( ((long)md1) > ((long)mainend) ) break;
 								
 								if(*md1) {
-									/* Name te pakken. slen needs
+									/* We've got a name. slen needs
 									 * correction for function
 									 * pointers! */
 									slen= strlen(md1);
@@ -663,12 +663,12 @@ int calculate_structlens(void)
 		lastunknown= unknown;
 		unknown= 0;
 		
-		/* loop alle structen af... */
+		/* check all structs... */
 		for(a=0; a<nr_structs; a++) {
 			structpoin= structs[a];
 			structtype= structpoin[0];
 
-			/* als lengte nog niet bekend */
+			/* when length is not known... */
 			if(typelens[structtype]==0) {
 				
 				sp= structpoin+2;
@@ -676,16 +676,16 @@ int calculate_structlens(void)
 				alphalen = 0;
 				has_pointer = 0;
 				
-				/* loop alle elementen in struct af */
+				/* check all elements in struct */
 				for(b=0; b<structpoin[1]; b++, sp+=2) {
 					type= sp[0];
 					cp= names[sp[1]];
 					
 					namelen= strlen(cp);
-					/* is het een pointer of functiepointer? */
+					/* is it a pointer or function pointer? */
 					if(cp[0]=='*' || cp[1]=='*') {
 						has_pointer = 1;
-						/* heeft de naam een extra lengte? (array) */
+						/* has the name an extra length? (array) */
 						mul= 1;
 						if( cp[namelen-1]==']') mul= arraysize(cp, namelen);
 						
@@ -711,7 +711,7 @@ int calculate_structlens(void)
 						alphalen += 8 * mul;
 
 					} else if( typelens[type] ) {
-						/* heeft de naam een extra lengte? (array) */
+						/* has the name an extra length? (array) */
 						mul= 1;
 						if( cp[namelen-1]==']') mul= arraysize(cp, namelen);
 						
@@ -763,7 +763,7 @@ int calculate_structlens(void)
 				structpoin= structs[a];
 				structtype= structpoin[0];
 				
-				/* lengte nog niet bekend */
+				/* length unknown */
 				if(typelens[structtype]!=0) {
 					printf("  %s\n", types[structtype]);
 				}
@@ -777,7 +777,7 @@ int calculate_structlens(void)
 			structpoin= structs[a];
 			structtype= structpoin[0];
 
-			/* lengte nog niet bekend */
+			/* length unkown yet */
 			if(typelens[structtype]==0) {
 				printf("  %s\n", types[structtype]);
 			}
@@ -818,7 +818,7 @@ void printStructLenghts(void)
 		lastunknown= unknown;
 		unknown= 0;
 		
-		/* loop alle structen af... */
+		/* check all structs... */
 		for(a=0; a<nr_structs; a++) {
 			structpoin= structs[a];
 			structtype= structpoin[0];
@@ -846,20 +846,20 @@ int make_structDNA(FILE *file)
 		printf("\tProgram version: %s\n", DNA_VERSION_DATE);
 	}
 		
-	/* de allerlangst bekende struct is 50k, 100k is ruimte genoeg! */
+	/* the longest known struct is 50k, so we assume 100k is sufficent! */
 	namedata= MEM_callocN(maxdata, "namedata");
 	typedata= MEM_callocN(maxdata, "typedata");
 	structdata= MEM_callocN(maxdata, "structdata");
 	
-	/* maximaal 5000 variablen, vast voldoende? */
+	/* a maximum of 5000 variables, must be sufficient? */
 	names= MEM_callocN(sizeof(char *)*maxnr, "names");
 	types= MEM_callocN(sizeof(char *)*maxnr, "types");
 	typelens= MEM_callocN(sizeof(short)*maxnr, "typelens");
 	alphalens= MEM_callocN(sizeof(short)*maxnr, "alphalens");
 	structs= MEM_callocN(sizeof(short)*maxnr, "structs");
 
-	/* inserten alle bekende types */
-	/* let op: uint komt niet voor! gebruik in structen unsigned int */
+	/* insertion of all known types */
+	/* watch it: uint is not allowed! use in structs an unsigned int */
 	add_type("char", 1);	/* 0 */
 	add_type("uchar", 1);	/* 1 */
 	add_type("short", 2);	/* 2 */
@@ -903,7 +903,7 @@ int make_structDNA(FILE *file)
 		return(1);
 	}
 
-	/* DIT DEEL VOOR DEBUG */
+	/* FOR DEBUG */
 	if (debugSDNA > 1)
 	{
 		int a,b;
@@ -934,7 +934,7 @@ int make_structDNA(FILE *file)
 		}
 	}
 
-	/* file schrijven */
+	/* file writing */
 
 	if (debugSDNA > -1) printf("Writing file ... ");
 		
@@ -943,34 +943,34 @@ int make_structDNA(FILE *file)
 		strcpy(str, "SDNA");
 		dna_write(file, str, 4);
 		
-		/* SCHRIJF NAMEN */
+		/* write names */
 		strcpy(str, "NAME");
 		dna_write(file, str, 4);
 		len= nr_names;
 		dna_write(file, &len, 4);
 		
-		/* lengte berekenen datablok met strings */
+		/* calculate size of datablock with strings */
 		cp= names[nr_names-1];
-		cp+= strlen(names[nr_names-1]) + 1;			/* +1: nul-terminator */
+		cp+= strlen(names[nr_names-1]) + 1;			/* +1: null-terminator */
 		len= (long)cp - (long)(names[0]);
 		len= (len+3) & ~3;
 		dna_write(file, names[0], len);
 		
-		/* SCHRIJF TYPES */
+		/* write TYPES */
 		strcpy(str, "TYPE");
 		dna_write(file, str, 4);
 		len= nr_types;
 		dna_write(file, &len, 4);
 	
-		/* lengte berekenen datablok */
+		/* calculate datablock size */
 		cp= types[nr_types-1];
-		cp+= strlen(types[nr_types-1]) + 1;		/* +1: nul-terminator */
+		cp+= strlen(types[nr_types-1]) + 1;		/* +1: null-terminator */
 		len= (long)cp - (long)(types[0]);
 		len= (len+3) & ~3;
 		
 		dna_write(file, types[0], len);
 		
-		/* SCHRIJF TYPELENGTES */
+		/* WRITE TYPELENGTHS */
 		strcpy(str, "TLEN");
 		dna_write(file, str, 4);
 		
@@ -978,13 +978,13 @@ int make_structDNA(FILE *file)
 		if(nr_types & 1) len+= 2;
 		dna_write(file, typelens, len);
 		
-		/* SCHRIJF STRUCTEN */
+		/* WRITE STRUCTS */
 		strcpy(str, "STRC");
 		dna_write(file, str, 4);
 		len= nr_structs;
 		dna_write(file, &len, 4);
 	
-		/* lengte berekenen datablok */
+		/* calc datablock size */
 		sp= structs[nr_structs-1];
 		sp+= 2+ 2*( sp[1] );
 		len= (long)sp - (long)(structs[0]);
@@ -992,7 +992,7 @@ int make_structDNA(FILE *file)
 		
 		dna_write(file, structs[0], len);
 	
-		/* dna padding test */
+		/* a simple dna padding test */
 
 		if (0) {
 			FILE *fp;
@@ -1036,7 +1036,7 @@ int make_structDNA(FILE *file)
 	return(0);
 }
 
-/* ************************* END MAKEN DNA ********************** */
+/* ************************* END MAKE DNA ********************** */
 
 void make_bad_file(char *file)
 {
diff --git a/source/blender/radiosity/extern/include/radio_types.h b/source/blender/radiosity/extern/include/radio_types.h
index b485495e845..4d5e56d7a15 100644
--- a/source/blender/radiosity/extern/include/radio_types.h
+++ b/source/blender/radiosity/extern/include/radio_types.h
@@ -72,7 +72,7 @@ typedef struct RadView {
 #define RAD_BACKFACE	8
 
 
-typedef struct RNode {					/* lengte: 76 */
+typedef struct RNode {					/* length: 76 */
 	struct RNode *down1, *down2, *up;
 	struct RNode *ed1, *ed2, *ed3, *ed4;
 	struct RPatch *par;
@@ -87,7 +87,7 @@ typedef struct RNode {					/* lengte: 76 */
 } RNode;
 
 
-typedef struct Elem {					/* lengte: 44 */
+typedef struct Elem {					/* length: 44 */
 	struct RPatch *par;
 
 	short type;							/* type: 4==QUAD, 3==TRIA */
@@ -99,7 +99,7 @@ typedef struct Elem {					/* lengte: 44 */
 } Elem;
 
 
-typedef struct Face {					/* lengte: 24 */
+typedef struct Face {					/* length: 24 */
 	float *v1, *v2, *v3, *v4;
 	unsigned int col, matindex;
 } Face;
@@ -114,7 +114,7 @@ typedef struct RPatch {
 	struct Object *from;
 	
 	int type;				/* 3: TRIA, 4: QUAD */
-	short f, f1;			/* flags f: als node, alleen subdiv */
+	short f, f1;			/* flags f: if node, only for subdiv */
 
 	float ref[3], emit[3], unshot[3];
 	float cent[3], norm[3];
@@ -124,7 +124,7 @@ typedef struct RPatch {
 } RPatch;
 
 
-typedef struct VeNoCo {				/* nodig voor splitconnected */
+typedef struct VeNoCo {				/* needed for splitconnected */
 	struct VeNoCo *next;
 	float *v;
 	float *n;
@@ -133,7 +133,7 @@ typedef struct VeNoCo {				/* nodig voor splitconnected */
 } VeNoCo;
 
 
-typedef	struct EdSort {					/* sorteren edges */
+typedef	struct EdSort {					/* sort edges */
 	float *v1, *v2;
 	RNode *node;
 	int nr;
@@ -144,18 +144,18 @@ typedef struct {
 	unsigned int *hemibuf;
 	struct ListBase patchbase;
 	int totpatch, totelem, totvert, totlamp;
-	RNode **elem;						/* globaal array van alle pointers */
-	VeNoCo *verts;						/* tijdelijk vertices van patches */
-	float *formfactors;				    /* een factor per element */
-	float *topfactors, *sidefactors;    /* LUT voor delta's */
-	int *index;						/* LUT voor bovenstaande LUT */
+	RNode **elem;						/* global array with all pointers */
+	VeNoCo *verts;						/* temporal vertices from patches */
+	float *formfactors;				    /* 1 factor per element */
+	float *topfactors, *sidefactors;    /* LUT for delta's */
+	int *index;						/* LUT for above LUT */
 	Face **facebase;
 	int totface;
 	float min[3], max[3], size[3], cent[3];	/* world */
 	float maxsize, totenergy;
 	float patchmin, patchmax;
 	float elemmin, elemmax;
-	float radfactor, lostenergy, igamma;		/* radfac zit in button, radfactor wordt berekend */
+	float radfactor, lostenergy, igamma;		/* radfac is in button, radfactor is calculated */
 	int phase;
 	/* to preserve materials as used before, max 16 */
 	Material *matar[MAXMAT];
@@ -163,11 +163,11 @@ typedef struct {
 	
 		/* this part is a copy of struct Radio */
 	short hemires, maxiter;
-	short drawtype, flag;			/* bit 0 en 1: limits laten zien */
+	short drawtype, flag;			/* bit 0 en 1: show limits */
 	short subshootp, subshoote, nodelim, maxsublamp;
 	int maxnode;
 	float convergence;
-	float radfac, gamma;		/* voor afbeelden */
+	float radfac, gamma;		/* for display */
 
 } RadGlobal;
 
diff --git a/source/blender/radiosity/intern/source/raddisplay.c b/source/blender/radiosity/intern/source/raddisplay.c
index de8ffbacd81..8046f07874d 100644
--- a/source/blender/radiosity/intern/source/raddisplay.c
+++ b/source/blender/radiosity/intern/source/raddisplay.c
@@ -66,9 +66,7 @@
 
 #include "radio.h"
 
-/* Mij afspraak is cpack een getal dat als 0xFFaa66 of zo kan worden
- * uitgedrukt. Is dus gevoelig voor endian. Met deze define wordt het
- * altijd goed afgebeeld */
+/* cpack has to be endian-insensitive! (old irisgl function) */
 #define cpack(x)   glColor3ub( ((x)&0xFF), (((x)>>8)&0xFF), (((x)>>16)&0xFF) )
 
 char calculatecolor(float col)
@@ -217,7 +215,7 @@ void drawpatch_ext(RPatch *patch, unsigned int col)
 	sa= G.curscreen->areabase.first;
 	while(sa) {
 		if (sa->spacetype==SPACE_VIEW3D) {
-		 	/* hier mywinget() gebruiken: anders wordt in header getekend */
+		 	/* use mywinget() here: otherwise it draws in header */
 		 	if(sa->win != mywinget()) areawinset(sa->win);
 			drawnodeWire(patch->first);
 		}
@@ -358,7 +356,7 @@ void drawsquare(float *cent, float size, short cox, short coy)
 
 void drawlimits()
 {
-	/* centreer rond cent */
+	/* centre around cent */
 	short cox=0, coy=1;
 	
 	if((RG.flag & 3)==2) coy= 2;
@@ -404,7 +402,7 @@ void pseudoAmb()
 	float fac;
 	char col[4];
 	
-	/* zet pseudo ambient kleuren in de nodes */
+	/* sets pseudo ambient color in the nodes */
 
 	rp= RG.patchbase.first;
 	while(rp) {
@@ -429,7 +427,7 @@ void pseudoAmb()
 
 void RAD_drawall(int depth_is_on)
 {
-	/* maakt afbeelding van elements of van faces */
+	/* displays elements or faces */
 	Face *face = NULL;
 	RNode **el;
 	RPatch *rp;
@@ -518,7 +516,7 @@ void rad_forcedraw()
 	sa= G.curscreen->areabase.first;
 	while(sa) {
 		if (sa->spacetype==SPACE_VIEW3D) {
-		 	/* hier mywinget() gebruiken: anders wordt in header getekend */
+		 	/* use mywinget() here: othwerwise it draws in header */
 		 	if(sa->win != mywinget()) areawinset(sa->win);
 		 	scrarea_do_windraw(sa);
 		}
diff --git a/source/blender/radiosity/intern/source/radfactors.c b/source/blender/radiosity/intern/source/radfactors.c
index 1111593de5b..d0b6a7752a9 100644
--- a/source/blender/radiosity/intern/source/radfactors.c
+++ b/source/blender/radiosity/intern/source/radfactors.c
@@ -69,18 +69,18 @@ RadView hemitop, hemiside;
 float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 {
 	float tvec[3], fac;
-	float vec[4][3];	/* vectoren van shootcent naar vertices rp */
-	float cross[4][3];	/* uitprodukten hiervan */
-	float rad[4];	/* hoeken tussen vecs */
+	float vec[4][3];	/* vectors of shoot->cent to vertices rp */
+	float cross[4][3];	/* cross products of this */
+	float rad[4];	/* anlgles between vecs */
 
-	/* test op richting */
+	/* test for direction */
 	VecSubf(tvec, shoot->cent, rp->cent);
 	if( tvec[0]*shoot->norm[0]+ tvec[1]*shoot->norm[1]+ tvec[2]*shoot->norm[2]>0.0)
 		return 0.0;
 	
 	if(rp->type==4) {
 
-		/* hoekvectors */
+		/* corner vectors */
 		VecSubf(vec[0], shoot->cent, rn->v1);
 		VecSubf(vec[1], shoot->cent, rn->v2);
 		VecSubf(vec[2], shoot->cent, rn->v3);
@@ -91,7 +91,7 @@ float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 		Normalise(vec[2]);
 		Normalise(vec[3]);
 
-		/* uitprod */
+		/* cross product */
 		Crossf(cross[0], vec[0], vec[1]);
 		Crossf(cross[1], vec[1], vec[2]);
 		Crossf(cross[2], vec[2], vec[3]);
@@ -101,7 +101,7 @@ float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 		Normalise(cross[2]);
 		Normalise(cross[3]);
 
-		/* hoeken */
+		/* angles */
 		rad[0]= vec[0][0]*vec[1][0]+ vec[0][1]*vec[1][1]+ vec[0][2]*vec[1][2];
 		rad[1]= vec[1][0]*vec[2][0]+ vec[1][1]*vec[2][1]+ vec[1][2]*vec[2][2];
 		rad[2]= vec[2][0]*vec[3][0]+ vec[2][1]*vec[3][1]+ vec[2][2]*vec[3][2];
@@ -112,7 +112,7 @@ float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 		rad[2]= acos(rad[2]);
 		rad[3]= acos(rad[3]);
 
-		/* Stoke formule */
+		/* Stoke formula */
 		VecMulf(cross[0], rad[0]);
 		VecMulf(cross[1], rad[1]);
 		VecMulf(cross[2], rad[2]);
@@ -125,7 +125,7 @@ float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 		fac+= tvec[0]*cross[3][0]+ tvec[1]*cross[3][1]+ tvec[2]*cross[3][2];
 	}
 	else {
-		/* hoekvectors */
+		/* corner vectors */
 		VecSubf(vec[0], shoot->cent, rn->v1);
 		VecSubf(vec[1], shoot->cent, rn->v2);
 		VecSubf(vec[2], shoot->cent, rn->v3);
@@ -134,7 +134,7 @@ float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 		Normalise(vec[1]);
 		Normalise(vec[2]);
 
-		/* uitprod */
+		/* cross product */
 		Crossf(cross[0], vec[0], vec[1]);
 		Crossf(cross[1], vec[1], vec[2]);
 		Crossf(cross[2], vec[2], vec[0]);
@@ -142,7 +142,7 @@ float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 		Normalise(cross[1]);
 		Normalise(cross[2]);
 
-		/* hoeken */
+		/* angles */
 		rad[0]= vec[0][0]*vec[1][0]+ vec[0][1]*vec[1][1]+ vec[0][2]*vec[1][2];
 		rad[1]= vec[1][0]*vec[2][0]+ vec[1][1]*vec[2][1]+ vec[1][2]*vec[2][2];
 		rad[2]= vec[2][0]*vec[0][0]+ vec[2][1]*vec[0][1]+ vec[2][2]*vec[0][2];
@@ -151,7 +151,7 @@ float calcStokefactor(RPatch *shoot, RPatch *rp, RNode *rn, float *area)
 		rad[1]= acos(rad[1]);
 		rad[2]= acos(rad[2]);
 
-		/* Stoke formule */
+		/* Stoke formula */
 		VecMulf(cross[0], rad[0]);
 		VecMulf(cross[1], rad[1]);
 		VecMulf(cross[2], rad[2]);
@@ -228,8 +228,8 @@ void calcSidefactors()
 
 void initradiosity()
 {
-	/* alloceert en maakt LUTs voor top/side factors */
-	/* alloceert en maakt index array */
+	/* allocates and makes LUTs for top/side factors */
+	/* allocates and makes index array */
 	int a, hres2;
 
 	if(RG.topfactors) MEM_freeN(RG.topfactors);
@@ -261,7 +261,7 @@ void rad_make_hocos(RadView *vw)
 	/* } */
 }
 
-void rad_setmatrices(RadView *vw)	    /* voor hemi's */
+void rad_setmatrices(RadView *vw)	    /* for hemi's */
 {
 	float up1[3], len, twist;
 
@@ -292,7 +292,7 @@ void hemizbuf(RadView *vw)
 	rad_setmatrices(vw);
 	RE_zbufferall_radio(vw, RG.elem, RG.totelem);
 
-	/* factors tellen */
+	/* count factors */
 	if(vw->recty==vw->rectx) factors= RG.topfactors;
 	else factors= RG.sidefactors;
 	hres= RG.hemires/2;
@@ -730,13 +730,13 @@ void subdivideshootElements(int it)
 			if(blender_test_break()) break;
 		}
 		
-		/* test op extreem weinig kleurverloop binnen patch met subdivflag */
+		/* test for extreme small color change within a patch with subdivflag */
 		
 		rp= RG.patchbase.first;
 		
 		while(rp) {
-			if(rp->f & RAD_SUBDIV) {		/* rp heeft elems die moet gesubd */
-				/* minstens 4 levels diep */
+			if(rp->f & RAD_SUBDIV) {		/* rp has elems that need subdiv */
+				/* at least 4 levels deep */
 				rn= rp->first->down1;
 				if(rn) {
 					rn= rn->down1;
@@ -748,13 +748,13 @@ void subdivideshootElements(int it)
 				if(rn) {
 					min[0]= min[1]= min[2]= 1.0e10;
 					max[0]= max[1]= max[2]= -1.0e10;
-					/* errmin en max zijn de gefilterde kleuren */
+					/* errmin and max are the filtered colors */
 					errmin[0]= errmin[1]= errmin[2]= 1.0e10;
 					errmax[0]= errmax[1]= errmax[2]= -1.0e10;
 					minmaxradelemfilt(rp->first, min, max, errmin, errmax);
 					
-					/* verschil tussen kleuren klein: toch maar niet subd */
-					/* test ook voor de gefilterde: maar kritischer */
+					/* if small difference between colors: no subdiv */
+					/* also test for the filtered ones: but with higher critical level */
 					
 					contin= 0;
 					a= abs( calculatecolor(min[0])-calculatecolor(max[0]));
@@ -837,7 +837,7 @@ void subdivideshootPatches(int it)
 					
 						stoke= calcStokefactor(shoot, rp, rp->first, &area);
 						if(stoke!= 0.0) {
-							if(area>.1) {	/* ontvangt patch meer dan (ong)10% van energie? */
+							if(area>.1) {	/* does patch receive more than (about)10% of energy? */
 								rp->f= RAD_SUBDIV;
 							}
 							else {
@@ -853,16 +853,6 @@ void subdivideshootPatches(int it)
 														
 											rp->f= RAD_SUBDIV;
 											
-											/* if(get_qual()&LR_SHIFTKEY);
-											else {
-												drawpatch_ext(rp, 0xFF77FF);
-					
-												printf("Pa hemi %f stoke %f err %f area %f\n", *fp, stoke, err, area);
-					
-												while(get_mbut()&L_MOUSE==0);
-												while(get_mbut()&L_MOUSE);
-											}
-											*/
 										}
 									}
 								}
@@ -919,7 +909,7 @@ void inithemiwindows()
 {
 	RadView *vw;
 
-	/* de hemiwindows */
+	/* the hemiwindows */
 	vw= &(hemitop);
 	memset(vw, 0, sizeof(RadView));
 	vw->rectx= RG.hemires;
diff --git a/source/blender/radiosity/intern/source/radio.c b/source/blender/radiosity/intern/source/radio.c
index b601605157a..08968483a18 100644
--- a/source/blender/radiosity/intern/source/radio.c
+++ b/source/blender/radiosity/intern/source/radio.c
@@ -279,7 +279,6 @@ int rad_go(void)	/* return 0 when user escapes */
 {
 	double stime= PIL_check_seconds_timer();
 	int retval;
-	/* firsttime moet vervangen worden door radphase? */
 	
 	if(RG.totface) return 0;
 
@@ -311,7 +310,7 @@ int rad_go(void)	/* return 0 when user escapes */
 
 	removeEqualNodes(RG.nodelim);
 
-	make_face_tab();	/* nu geankerd */
+	make_face_tab();	/* now anchored */
 
 	closehemiwindows();
 	RG.phase= 0;
diff --git a/source/blender/radiosity/intern/source/radnode.c b/source/blender/radiosity/intern/source/radnode.c
index 522f08d4e00..844973e4d1f 100644
--- a/source/blender/radiosity/intern/source/radnode.c
+++ b/source/blender/radiosity/intern/source/radnode.c
@@ -237,7 +237,7 @@ void setnodelimit(float limit)
 
 }
 
-/* ************  GEHEUGENBEHEER ***********  */
+/* ************  memory management ***********  */
 
 int Ntotvert=0, Ntotnode=0, Ntotpatch=0;
 
@@ -313,7 +313,7 @@ void freePatch(RPatch *patch)
 
 void replaceAllNode(RNode *neighb, RNode *newn)
 {
-	/* verandert van alle buren de edgepointers die naar newn->up wijzen in new */
+	/* changes from all neighbours the edgepointers that point to newn->up in new */
 	int ok= 0;
 	
 	
@@ -345,7 +345,7 @@ void replaceAllNode(RNode *neighb, RNode *newn)
 
 void replaceAllNodeInv(RNode *neighb, RNode *old)
 {
-	/* verandert van alle buren de edgepointers die naar old wijzen in old->up */
+	/* changes from all neighbours the edgepointers that point to old in old->up */
 	if(neighb==0) return;
 	if(old->up==0) return;
 	
@@ -370,7 +370,7 @@ void replaceAllNodeInv(RNode *neighb, RNode *old)
 
 void replaceAllNodeUp(RNode *neighb, RNode *old)
 {
-	/* verandert van alle buren de edgepointers die naar old wijzen in old->up */
+	/* changes from all neighbours the edgepointers that point to old in old->up */
 	if(neighb==0) return;
 	if(old->up==0) return;
 	neighb= neighb->up;
@@ -397,15 +397,15 @@ void replaceAllNodeUp(RNode *neighb, RNode *old)
 
 void replaceTestNode(RNode *neighb, RNode **edpp, RNode *newn, int level, float *vert)
 {
-	/*	IF neighb->ed wijst naar newn->up
-	 *		IF edgelevels gelijk
-				IF testvert zit in neighb->ed
-					pointers beide kanten op veranderen
+	/*	IF neighb->ed points to newn->up
+	 *		IF edgelevels equal
+				IF testvert is in neighb->ed
+					change pointers both ways
 				ELSE
 					RETURN
 			ELSE
-				IF neighb edgelevel is dieper
-					verander neighb pointer
+				IF neighb edgelevel is deeper
+					change neighb pointer
 		
 	 */
 	int ok= 0;
@@ -484,7 +484,7 @@ void replaceTestNode(RNode *neighb, RNode **edpp, RNode *newn, int level, float
 
 int setvertexpointersNode(RNode *neighb, RNode *node, int level, float **v1, float **v2)
 {
-	/* vergelijkt edgelevels , als gelijk zet het de vertexpointers */
+	/* compares edgelevels , if equal it sets the vertexpointers */
 	
 	if(neighb==0) return 0;
 	
@@ -542,7 +542,7 @@ void subdivideTriNode(RNode *node, RNode *edge)
 		return;
 	}
 	
-	/* bepaal subdivide richting */
+	/* defines subdivide direction */
 
 	if(edge==0) {
 		/* areathreshold */
@@ -563,7 +563,7 @@ void subdivideTriNode(RNode *node, RNode *edge)
 		else uvl= 3;
 	}
 	
-	/*  moeten naastliggende nodes dieper? Recursief! */
+	/*  should neighbour nodes be deeper? Recursive! */
 	n1= 0; 
 	if(uvl==1) {
 		if(node->ed1 && node->ed1->down1==0) n1= node->ed1;
@@ -576,7 +576,7 @@ void subdivideTriNode(RNode *node, RNode *edge)
 	}
 	if(n1) {
 		up= node->up;
-		while(up) {							/* ook testen op ed4 !!! */
+		while(up) {							/* also test for ed4 !!! */
 			if(n1->ed1==up || n1->ed2==up || n1->ed3==up || n1->ed4==up) {
 				subdivideNode(n1, up);
 				break;
@@ -585,7 +585,7 @@ void subdivideTriNode(RNode *node, RNode *edge)
 		}
 	}
 	
-	/* Het subdividen */
+	/* the subsidiving */
 	n1= mallocNode();
 	memcpy(n1, node, sizeof(RNode));
 	n2= mallocNode();
@@ -600,22 +600,22 @@ void subdivideTriNode(RNode *node, RNode *edge)
 	/* subdivide edge 1 */
 	if(uvl==1) {
 	
-		/* EERSTE NODE  krijgt edge 2 */
+		/* FIRST NODE  gets edge 2 */
 		n1->ed3= n2;
 		n1->lev3= 0;
 		replaceAllNode(n1->ed2, n1);
 		n1->lev1++;
 		replaceTestNode(n1->ed1, &(n1->ed1), n1, n1->lev1, n1->v2);
 
-		/* TWEEDE NODE  krijgt edge 3 */
+		/* SECOND NODE  gets edge 3 */
 		n2->ed2= n1;
 		n2->lev2= 0;
 		replaceAllNode(n2->ed3, n2);
 		n2->lev1++;
 		replaceTestNode(n2->ed1, &(n2->ed1), n2, n2->lev1, n2->v1);
 		
-		/* NIEUWE VERTEX uit edge 1 */
-		if( setvertexpointersNode(n1->ed1, n1, n1->lev1, &v1, &v2) ) {	/* nodes hebben gelijke levels */
+		/* NEW VERTEX from edge 1 */
+		if( setvertexpointersNode(n1->ed1, n1, n1->lev1, &v1, &v2) ) {	/* nodes have equal levels */
 			if(v1== n1->v2) {
 				n1->v1= v2;
 				n2->v2= v2;
@@ -635,22 +635,22 @@ void subdivideTriNode(RNode *node, RNode *edge)
 	}
 	else if(uvl==2) {
 	
-		/* EERSTE NODE  krijgt edge 1 */
+		/* FIRST NODE gets edge 1 */
 		n1->ed3= n2;
 		n1->lev3= 0;
 		replaceAllNode(n1->ed1, n1);
 		n1->lev2++;
 		replaceTestNode(n1->ed2, &(n1->ed2), n1, n1->lev2, n1->v2);
 
-		/* TWEEDE NODE  krijgt edge 3 */
+		/* SECOND NODE gets edge 3 */
 		n2->ed1= n1;
 		n2->lev1= 0;
 		replaceAllNode(n2->ed3, n2);
 		n2->lev2++;
 		replaceTestNode(n2->ed2, &(n2->ed2), n2, n2->lev2, n2->v3);
 		
-		/* NIEUWE VERTEX uit edge 2 */
-		if( setvertexpointersNode(n1->ed2, n1, n1->lev2, &v1, &v2) ) {	/* nodes hebben gelijke levels */
+		/* NEW VERTEX from edge 2 */
+		if( setvertexpointersNode(n1->ed2, n1, n1->lev2, &v1, &v2) ) {	/* nodes have equal levels */
 			if(v1== n1->v2) {
 				n1->v3= v2;
 				n2->v2= v2;
@@ -670,22 +670,22 @@ void subdivideTriNode(RNode *node, RNode *edge)
 	}
 	else if(uvl==3) {
 	
-		/* EERSTE NODE  krijgt edge 1 */
+		/* FIRST NODE gets edge 1 */
 		n1->ed2= n2;
 		n1->lev2= 0;
 		replaceAllNode(n1->ed1, n1);
 		n1->lev3++;
 		replaceTestNode(n1->ed3, &(n1->ed3), n1, n1->lev3, n1->v1);
 
-		/* TWEEDE NODE  krijgt edge 2 */
+		/* SECOND NODE gets edge 2 */
 		n2->ed1= n1;
 		n2->lev1= 0;
 		replaceAllNode(n2->ed2, n2);
 		n2->lev3++;
 		replaceTestNode(n2->ed3, &(n2->ed3), n2, n2->lev3, n2->v3);
 		
-		/* NIEUWE VERTEX uit edge 3 */
-		if( setvertexpointersNode(n1->ed3, n1, n1->lev3, &v1, &v2) ) {	/* nodes hebben gelijke levels */
+		/* NEW VERTEX from edge 3 */
+		if( setvertexpointersNode(n1->ed3, n1, n1->lev3, &v1, &v2) ) {	/* nodes have equal levels */
 			if(v1== n1->v1) {
 				n1->v3= v2;
 				n2->v1= v2;
@@ -727,7 +727,7 @@ void subdivideNode(RNode *node, RNode *edge)
 		return;
 	}
 	
-	/* bepaal subdivide richting */
+	/* defines subdivide direction */
 
 	if(edge==0) {
 		/* areathreshold */
@@ -744,7 +744,7 @@ void subdivideNode(RNode *node, RNode *edge)
 		else uvl= 2;
 	}
 	
-	/*  moeten naastliggende nodes dieper? Recursief! */
+	/*  do neighbour nodes have to be deeper? Recursive! */
 	n1= n2= 0; 
 	if(uvl==1) {
 		if(node->ed1 && node->ed1->down1==0) n1= node->ed1;
@@ -777,7 +777,7 @@ void subdivideNode(RNode *node, RNode *edge)
 		}
 	}
 
-	/* Het subdividen */
+	/* the subdividing */
 	n1= mallocNode();
 	memcpy(n1, node, sizeof(RNode));
 	n2= mallocNode();
@@ -789,10 +789,10 @@ void subdivideNode(RNode *node, RNode *edge)
 	node->down1= n1;
 	node->down2= n2;
 
-	/* subdivide edge 1 en 3 */
+	/* subdivide edge 1 and 3 */
 	if(uvl==1) {
 		
-		/* EERSTE NODE  krijgt edge 2 */
+		/* FIRST NODE  gets edge 2 */
 		n1->ed4= n2;
 		n1->lev4= 0;
 		replaceAllNode(n1->ed2, n1);
@@ -801,7 +801,7 @@ void subdivideNode(RNode *node, RNode *edge)
 		replaceTestNode(n1->ed1, &(n1->ed1), n1, n1->lev1, n1->v2);
 		replaceTestNode(n1->ed3, &(n1->ed3), n1, n1->lev3, n1->v3);
 
-		/* TWEEDE NODE  krijgt edge 4 */
+		/* SECOND NODE gets edge 4 */
 		n2->ed2= n1;
 		n2->lev2= 0;
 		replaceAllNode(n2->ed4, n2);
@@ -810,8 +810,8 @@ void subdivideNode(RNode *node, RNode *edge)
 		replaceTestNode(n2->ed1, &(n2->ed1), n2, n2->lev1, n2->v1);
 		replaceTestNode(n2->ed3, &(n2->ed3), n2, n2->lev3, n2->v4);
 		
-		/* NIEUWE VERTEX uit edge 1 */
-		if( setvertexpointersNode(n1->ed1, n1, n1->lev1, &v1, &v2) ) {	/* nodes hebben gelijke levels */
+		/* NEW VERTEX from edge 1 */
+		if( setvertexpointersNode(n1->ed1, n1, n1->lev1, &v1, &v2) ) {	/* nodes have equal levels */
 			if(v1== n1->v2) {
 				n1->v1= v2;
 				n2->v2= v2;
@@ -829,8 +829,8 @@ void subdivideNode(RNode *node, RNode *edge)
 			n1->v1[3]= node->v1[3];	/* color */
 		}
 		
-		/* NIEUWE VERTEX uit edge 3 */
-		if( setvertexpointersNode(n1->ed3, n1, n1->lev3, &v1, &v2) ) {	/* nodes hebben gelijke levels */
+		/* NEW VERTEX from edge 3 */
+		if( setvertexpointersNode(n1->ed3, n1, n1->lev3, &v1, &v2) ) {	/* nodes have equal levels */
 			if(v1== n1->v3) {
 				n1->v4= v2;
 				n2->v3= v2;
@@ -848,10 +848,10 @@ void subdivideNode(RNode *node, RNode *edge)
 			n1->v4[3]= node->v4[3];	/* color */
 		}
 	}
-	/* subdivide edge 2 en 4 */
+	/* subdivide edge 2 and 4 */
 	else if(uvl==2) {
 		
-		/* EERSTE NODE  krijgt edge 1 */
+		/* FIRST NODE gets edge 1 */
 		n1->ed3= n2;
 		n1->lev3= 0;
 		replaceAllNode(n1->ed1, n1);
@@ -860,7 +860,7 @@ void subdivideNode(RNode *node, RNode *edge)
 		replaceTestNode(n1->ed2, &(n1->ed2), n1, n1->lev2, n1->v2);
 		replaceTestNode(n1->ed4, &(n1->ed4), n1, n1->lev4, n1->v1);
 
-		/* TWEEDE NODE  krijgt edge 3 */
+		/* SECOND NODE gets edge 3 */
 		n2->ed1= n1;
 		n2->lev1= 0;
 		replaceAllNode(n2->ed3, n2);
@@ -869,8 +869,8 @@ void subdivideNode(RNode *node, RNode *edge)
 		replaceTestNode(n2->ed2, &(n2->ed2), n2, n2->lev2, n2->v3);
 		replaceTestNode(n2->ed4, &(n2->ed4), n2, n2->lev4, n2->v4);
 
-		/* NIEUWE VERTEX uit edge 2 */
-		if( setvertexpointersNode(n1->ed2, n1, n1->lev2, &v1, &v2) ) {	/* nodes hebben gelijke levels */
+		/* NEW VERTEX from edge 2 */
+		if( setvertexpointersNode(n1->ed2, n1, n1->lev2, &v1, &v2) ) {	/* nodes have equal levels */
 			if(v1== n1->v2) {
 				n1->v3= v2;
 				n2->v2= v2;
@@ -888,8 +888,8 @@ void subdivideNode(RNode *node, RNode *edge)
 			n1->v3[3]= node->v3[3];	/* color */
 		}
 
-		/* NIEUWE VERTEX uit edge 4 */
-		if( setvertexpointersNode(n1->ed4, n1, n1->lev4, &v1, &v2) ) {	/* nodes hebben gelijke levels */
+		/* NEW VERTEX from edge 4 */
+		if( setvertexpointersNode(n1->ed4, n1, n1->lev4, &v1, &v2) ) {	/* nodes have equal levels */
 			if(v1== n1->v1) {
 				n1->v4= v2;
 				n2->v1= v2;
@@ -916,15 +916,18 @@ void subdivideNode(RNode *node, RNode *edge)
 
 int comparelevel(RNode *node, RNode *nb, int level)
 {
-	/* recursief afdalen: bij diepste node testen */
-	/* return 1 is gelijk of hoger */
+	/* recursive descent: test with deepest node */
+	/* return 1 means equal or higher */
 	
 	if(nb==0) return 1;
 	
 	if(nb->down1) {
 		return 0;
 		
-		/*		HIER ZIT EEN FOUT, MAAR WELKE?  (zonder dit werkt 't ook, maar langzamer)
+		/*		THERE IS AN ERROR HERE, BUT WHAT?  (without this function the system
+		        works too, but is slower) (ton) */
+
+		/*
 		n1= nb->down1;
 		if(n1->ed1==node) return comparelevel(node, n1, level);
 		if(n1->ed2==node) return comparelevel(node, n1, level);
@@ -947,17 +950,17 @@ int comparelevel(RNode *node, RNode *nb, int level)
 		/* if(nb->ed3==node) return (nb->lev3<=level); */
 		/* if(nb->ed4==node) return (nb->lev4<=level); */
 		
-		return 1;	/* is hogere node */
+		return 1;	/* is higher node */
 	}
 	return 1;
 }
 
-void deleteTriNodes(RNode *node) 	/* beide kinderen van node */
+void deleteTriNodes(RNode *node) 	/* both children of node */
 {
 	RNode *n1, *n2;
 	
-	/* als naastliggende nodes dieper zijn: geen delete */
-	/* enkel twee nodes testen, van andere verandert level niet */
+	/* if neighbour nodes are deeper: no delete */
+	/* just test 2 nodes, from the others the level doesn't change */
 	
 	n1= node->down1;
 	n2= node->down2;
@@ -966,7 +969,7 @@ void deleteTriNodes(RNode *node) 	/* beide kinderen van node */
 	
 	if(n1->down1 || n2->down1) return;
 	
-	/* aan edges mag geen gesubdivide node zitten */
+	/* at the edges no subdivided node is allowed */
 
 	if(n1->ed1 && n1->ed1->down1) return;
 	if(n1->ed2 && n1->ed2->down1) return;
@@ -992,7 +995,7 @@ void deleteTriNodes(RNode *node) 	/* beide kinderen van node */
 	replaceAllNodeUp(n2->ed2, n2);
 	replaceAllNodeUp(n2->ed3, n2);
 
-	n1->down1= (RNode *)12;	/* voor debug */
+	n1->down1= (RNode *)12;	/* for debug */
 	n2->down1= (RNode *)12;
 	
 	freeNode(n1);
@@ -1001,13 +1004,13 @@ void deleteTriNodes(RNode *node) 	/* beide kinderen van node */
 	
 }
 
-	/* beide kinderen van node */
+	/* both children of node */
 void deleteNodes(RNode *node)
 {
 	RNode *n1, *n2;
-	
-	/* als naastliggende nodes dieper zijn: geen delete */
-	/* enkel twee nodes testen, van andere verandert level niet */
+
+	/* if neighbour nodes are deeper: no delete */
+	/* just test 2 nodes, from the others the level doesn't change */
 
 	if(node->type==3) {
 		deleteTriNodes(node);
@@ -1023,7 +1026,7 @@ void deleteNodes(RNode *node)
 	
 	if(n1->ed3==n2) {
 
-		/* aan edges mag geen gesubdivide node zitten */
+		/* at the edges no subdivided node is allowed */
 
 		if(n1->ed1 && n1->ed1->down1) return;
 		if(n1->ed2 && n1->ed2->down1) return;
@@ -1049,7 +1052,7 @@ void deleteNodes(RNode *node)
 		replaceAllNodeUp(n2->ed3, n2);
 		replaceAllNodeUp(n2->ed4, n2);
 
-		n1->down1= (RNode *)12;	/* voor debug */
+		n1->down1= (RNode *)12;	/* for debug */
 		n2->down1= (RNode *)12;
 		
 		freeNode(n1);
@@ -1084,7 +1087,7 @@ void deleteNodes(RNode *node)
 		replaceAllNodeUp(n2->ed3, n2);
 		replaceAllNodeUp(n2->ed4, n2);
 
-		n1->down1= (RNode *)12;	/* voor debug */
+		n1->down1= (RNode *)12;	/* for debug */
 		n2->down1= (RNode *)12;
 		
 		freeNode(n1);
diff --git a/source/blender/radiosity/intern/source/radpostprocess.c b/source/blender/radiosity/intern/source/radpostprocess.c
index 010189ccb81..7b362b0e508 100644
--- a/source/blender/radiosity/intern/source/radpostprocess.c
+++ b/source/blender/radiosity/intern/source/radpostprocess.c
@@ -365,7 +365,7 @@ float *findmiddlevertex(RNode *node, RNode *nb, float *v1, float *v2)
 	return 0;
 }
 
-void make_face_tab()	/* zorgt voor ankers */
+void make_face_tab()	/* takes care of anchoring */
 {
 	RNode *rn, **el;
 	Face *face = NULL;
@@ -380,7 +380,7 @@ void make_face_tab()	/* zorgt voor ankers */
 	RG.igamma= 1.0/RG.gamma;
 	RG.radfactor= RG.radfac*pow(64*64, RG.igamma);
 
-	/* vlakkleuren omzetten */
+	/* convert face colors */
 	el= RG.elem;
 	for(a=RG.totelem; a>0; a--, el++) {
 		rn= *el;
@@ -391,7 +391,7 @@ void make_face_tab()	/* zorgt voor ankers */
 		charcol[1]= calculatecolor(rn->totrad[2]);
 	}
 	
-	/* nodes aflopen en Face's maken */
+	/* check nodes and make faces */
 	el= RG.elem;
 	for(a=RG.totelem; a>0; a--, el++) {
 
@@ -402,7 +402,7 @@ void make_face_tab()	/* zorgt voor ankers */
 		rn->v3[3]= 0.0;
 		if(rn->v4) rn->v4[3]= 0.0;
 		
-		/* test edges op subdivide */
+		/* test edges for subdivide */
 		flag= 0;
 		v1= v2= v3= v4= 0;
 		if(rn->ed1) {
@@ -425,7 +425,7 @@ void make_face_tab()	/* zorgt voor ankers */
 			if(v4) flag |= 8;
 		}
 		
-		/* met flag en vertexpointers kunnen nu Face's gemaakt*/
+		/* using flag and vertexpointers now Faces can be made */
 		
 		if(flag==0) {
 			makeface(rn->v1, rn->v2, rn->v3, rn->v4, rn);
@@ -434,7 +434,7 @@ void make_face_tab()	/* zorgt voor ankers */
 		else anchorTriface(rn, v1, v2, v3, flag);
 	}
 	
-	/* optellen */
+	/* add */
 	for(a=0; a<RG.totface; a++) {
 		
 		RAD_NEXTFACE(a);
@@ -457,20 +457,20 @@ void make_face_tab()	/* zorgt voor ankers */
 
 void filterFaces()
 {
-	/* alle kleuren van vertices in faces en weer terug */
+	/* put vertex colors in faces, and put them back */
 	
 	Face *face = NULL;
 	int a, w1, w2, w3;
 
 	if(RG.totface==0) return;
 
-	/* wissen */
+	/* clear */
 	for(a=0; a<RG.totface; a++) {
 		RAD_NEXTFACE(a);
 		face->col= 0;
 	}
 	
-	/* optellen: punten bij vlakken */
+	/* add: vertices with faces */
 	for(a=0; a<RG.totface; a++) {
 		RAD_NEXTFACE(a);
 		
@@ -488,7 +488,7 @@ void filterFaces()
 		}
 	}
 	
-	/* wissen */
+	/* clear */
 	for(a=0; a<RG.totface; a++) {
 		RAD_NEXTFACE(a);
 		face->v1[3]= 0.0;
@@ -498,7 +498,7 @@ void filterFaces()
 	}
 
 
-	/* optellen: vlakken bij punten */
+	/* add: faces with vertices */
 	for(a=0; a<RG.totface; a++) {
 		
 		RAD_NEXTFACE(a);
@@ -559,14 +559,14 @@ void calcfiltrad(RNode *rn, float *cd)
 
 void filterNodes()
 {
-	/* alle kleuren van nodes in tempblok en weer terug */
+	/* colors from nodes in tempblock and back */
 	
 	RNode *rn, **el;
 	float *coldata, *cd;
 	int a;
 
 	if(RG.totelem==0) return;
-	/* de upnodes moeten kleur hebben */
+	/* the up-nodes need a color */
 	el= RG.elem;
 	for(a=0; a<RG.totelem; a++, el++) {
 		rn= *el;
@@ -596,7 +596,7 @@ void filterNodes()
 		}
 	}
 	
-	/* met area optellen */
+	/* add using area */
 	cd= coldata= MEM_mallocN(3*4*RG.totelem, "filterNodes");
 	el= RG.elem;
 	for(a=0; a<RG.totelem; a++, el++) {
@@ -616,7 +616,7 @@ void filterNodes()
 
 void removeEqualNodes(short limit)
 {
-	/* nodes met kleur gelijk aan elkaar: verwijderen */
+	/* nodes with equal colors: remove */
 	RNode **el, *rn, *rn1;
 	float thresh, f1, f2;
 	int a, foundone=1, ok;
@@ -811,7 +811,7 @@ void rad_addmesh(void)
 			md[3]= coldata[mface->v4];
 		}
 		
-		/* boundbox en centrenew */
+		/* boundbox and centrenew */
 		
 		INIT_MINMAX(min, max);
 
diff --git a/source/blender/radiosity/intern/source/radpreprocess.c b/source/blender/radiosity/intern/source/radpreprocess.c
index 9946809926d..a1fb90abecc 100644
--- a/source/blender/radiosity/intern/source/radpreprocess.c
+++ b/source/blender/radiosity/intern/source/radpreprocess.c
@@ -72,15 +72,16 @@ void setparelem(RNode *rn, RPatch *par);
 
 void splitconnected()
 {
-	/* voor zover de videoscapefile nog gedeelde vertices leverde, worden de vlakken getest
-	 * op normaal en kleur. Doe dit door voor elke vertex een normaal en een kleur te onthouden.
+	/* Since input meshes can have faces with sharing vertices, the geometry is being tested here.
+	 * Using normals and colors, faces are split separately. we do this by storing for each
+	 * vertex a normal and a color
 	 */
 	RPatch *rp;
 	RNode *rn;
 	VeNoCo *vnc, *next, *vnc1;
 	int a;
 	
-	/* test of gesplit moet worden */
+	/* test if we need a split */
 	
 	rp= RG.patchbase.first;
 	while(rp) {
@@ -98,7 +99,7 @@ void splitconnected()
 					vnc->col= (float *)rp->ref;
 					vnc->flag= 1;
 				}
-				else {	/* mag vlak deze vertex gebruiken voor gouraud? */
+				else {	/* is face from this vertex allowed for gouraud? */
 					vnc1= vnc;
 					while(vnc1) {
 						if(VecCompare(vnc1->n, rp->norm, 0.01)) {
@@ -127,7 +128,7 @@ void splitconnected()
 		}
 		rp= rp->next;
 	}
-		/* de vertexpointers van nodes aanpassen */
+		/* adapt vertexpointers from nodes */
 	
 	rp= RG.patchbase.first;
 	while(rp) {
@@ -141,7 +142,7 @@ void splitconnected()
 	}
 	
 	
-	/* het hele zaakje vrijgeven */
+	/* free all */
 	vnc= RG.verts;
 	for(a=0; a<RG.totvert; a++) {
 		vnc1= vnc->next;
@@ -218,8 +219,8 @@ static void setedge(RNode *node, RNode *nb, int nr, int nrb)
 
 void setedgepointers()
 {
-	/* edge-array maken en sorteren */
-	/* paren edges staan bij elkaar: pointers invullen in nodes */
+	/* make edge-array and sort it */
+	/* pairs of edges are put together: fill in pointers in nodes */
 	EdSort *es, *esblock;
 	RPatch *rp;
 	RNode *rn;
@@ -430,7 +431,7 @@ void rad_collect_meshes()
 							v4= (RG.verts+mface->v4+offs)->v;
 						}			
 						rn->par= rp;
-						rn->f= RAD_PATCH;	/* deze node is Patch */
+						rn->f= RAD_PATCH;	/* this node is a Patch */
 						rn->type= rp->type;
 
 						CalcNormFloat(v1, v2, v3, rp->norm);
@@ -439,7 +440,7 @@ void rad_collect_meshes()
 
 						rn->area= rp->area;
 
-						/* kleur en emit */
+						/* color and emit */
 						if(mface->mat_nr != index) {
 							index= mface->mat_nr;
 							ma= give_current_material(ob, index+1);
@@ -516,7 +517,7 @@ void countelem(RNode *rn)
 
 void countglobaldata()
 {
-	/* telt aantal elements en patches*/
+	/* counts elements and patches*/
 	RPatch *rp;
 
 	RG.totelem= RG.totpatch= 0;
@@ -559,7 +560,7 @@ void makeGlobalElemArray()
 		return;
 	}
 
-	/* recursief elements toevoegen */
+	/* recursive adding elements */
 	rp= RG.patchbase.first;
 	while(rp) {
 		addelem(&el, rp->first, rp);
@@ -574,7 +575,7 @@ void makeGlobalElemArray()
 		RG.formfactors= 0;
 }
 
-void splitpatch(RPatch *old)		/* bij overflow gedurende shoot */
+void splitpatch(RPatch *old)		/* in case of overflow during shoot */
 {
 	RNode *rn;
 	float **fpp;
@@ -670,7 +671,7 @@ void addpatch(RPatch *old, RNode *rn)
 
 void converttopatches()
 {
-	/* loopt patcheslijst af, als node gesubdivided: nieuwe patch */
+	/* chacks patches list, if node subdivided: new patch */
 	RPatch *rp, *next;
 	
 	rp= RG.patchbase.first;
@@ -693,7 +694,7 @@ void subdiv_elements()
 
 	rad_init_energy();
 	
-	/* eerst maxsize elements */
+	/* first maxsize elements */
 	
 	while(toobig) {
 		toobig= 0;
@@ -773,7 +774,7 @@ void maxsizePatches()
 		if(toobig) converttopatches();
 	}
 	
-	/* aantal lampen tellen */
+	/* count lamps */
 	rp= RG.patchbase.first;
 	RG.totlamp= 0;
 	while(rp) {