Remove Blender Internal and legacy viewport from Blender 2.8.

Brecht authored this commit, but he gave me the honours to actually
do it. Here it goes; Blender Internal. Bye bye, you did great!

* Point density, voxel data, ocean, environment map textures were removed,
  as these only worked within BI rendering. Note that the ocean modifier
  and the Cycles point density shader node continue to work.
* Dynamic paint using material shading was removed, as this only worked
  with BI. If we ever wanted to support this again probably it should go
  through the baking API.
* GPU shader export through the Python API was removed. This only worked
  for the old BI GLSL shaders, which no longer exists. Doing something
  similar for Eevee would be significantly more complicated because it
  uses a lot of multiplass rendering and logic outside the shader, it's
  probably impractical.
* Collada material import / export code is mostly gone, as it only worked
  for BI materials. We need to add Cycles / Eevee material support at some
  point.
* The mesh noise operator was removed since it only worked with BI
  material texture slots. A displacement modifier can be used instead.
* The delete texture paint slot operator was removed since it only worked
  for BI material texture slots. Could be added back with node support.

* Not all legacy viewport features are supported in the new viewport, but
  their code was removed. If we need to bring anything back we can look at
  older git revisions.
* There is some legacy viewport code that I could not remove yet, and some
  that I probably missed.
* Shader node execution code was left mostly intact, even though it is not
  used anywhere now. We may eventually use this to replace the texture
  nodes with Cycles / Eevee shader nodes.

* The Cycles Bake panel now includes settings for baking multires normal
  and displacement maps. The underlying code needs to be merged properly,
  and we plan to add back support for multires AO baking and add support
  to Cycles baking for features like vertex color, displacement, and other
  missing baking features.

* This commit removes DNA and the Python API for BI material, lamp, world
  and scene settings. This breaks a lot of addons.
* There is more DNA that can be removed or renamed, where Cycles or Eevee
  are reusing some old BI properties but the names are not really correct
  anymore.
* Texture slots for materials, lamps and world were removed. They remain
  for brushes, particles and freestyle linestyles.
* 'BLENDER_RENDER' remains in the COMPAT_ENGINES of UI panels. Cycles and
  other renderers use this to find all panels to show, minus a few panels
  that they have their own replacement for.

1 files changed, 28 insertions, 100 deletions

diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index 18502158e4b..8a09cced24b 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -571,29 +571,14 @@ typedef struct RenderData {
 
 	float framelen, blurfac;
 
-	/** For UR edge rendering: give the edges this color */
-	float edgeR, edgeG, edgeB;
-
-
-	/* standalone player */  //  XXX deprecated since 2.5
-	short fullscreen  DNA_DEPRECATED, xplay  DNA_DEPRECATED, yplay  DNA_DEPRECATED;
-	short freqplay  DNA_DEPRECATED;
-	/* standalone player */  //  XXX deprecated since 2.5
-	short depth  DNA_DEPRECATED, attrib  DNA_DEPRECATED;
-
-
 	int frame_step;		/* frames to jump during render/playback */
 
 	short stereomode  DNA_DEPRECATED;	/* standalone player stereo settings */  //  XXX deprecated since 2.5
 	
 	short dimensionspreset;		/* for the dimensions presets menu */
 
-	short filtertype;	/* filter is box, tent, gauss, mitch, etc */
-
 	short size; /* size in % */
 	
-	short maximsize DNA_DEPRECATED; /* max in Kb */
-
 	short pad6;
 
 	/* from buttons: */
@@ -607,15 +592,6 @@ typedef struct RenderData {
 	int ysch;
 
 	/**
-	 * The number of part to use in the x direction
-	 */
-	short xparts DNA_DEPRECATED;
-	/**
-	 * The number of part to use in the y direction
-	 */
-	short yparts DNA_DEPRECATED;
-
-	/**
 	 * render tile dimensions
 	 */
 	int tilex, tiley;
@@ -640,22 +616,6 @@ typedef struct RenderData {
 	int mode;
 
 	/**
-	 * Flags for raytrace settings. Use bit-masking to access the settings.
-	 */
-	int raytrace_options;
-	
-	/**
-	 * Raytrace acceleration structure
-	 */
-	short raytrace_structure;
-
-	short pad1;
-
-	/* octree resolution */
-	short ocres;
-	short pad4;
-	
-	/**
 	 * What to do with the sky/background. Picks sky/premul/key
 	 * blending for the background
 	 */
@@ -666,7 +626,7 @@ typedef struct RenderData {
 	 */
 	short osa;
 
-	short frs_sec, edgeint;
+	short frs_sec, pad[7];
 
 	
 	/* safety, border and display rect */
@@ -676,9 +636,7 @@ typedef struct RenderData {
 	/* information on different layers to be rendered */
 	ListBase layers DNA_DEPRECATED; /* Converted to Scene->view_layers. */
 	short actlay DNA_DEPRECATED; /* Converted to Scene->active_layer. */
-	
-	/* number of mblur samples */
-	short mblur_samples;
+	short pad1;
 	
 	/**
 	 * Adjustment factors for the aspect ratio in the x direction, was a short in 2.45
@@ -695,18 +653,13 @@ typedef struct RenderData {
 	/* color management settings - color profiles, gamma correction, etc */
 	int color_mgt_flag;
 	
-	/** post-production settings. deprecated, but here for upwards compat (initialized to 1) */
-	float postgamma, posthue, postsat;
-	
 	 /* Dither noise intensity */
 	float dither_intensity;
 	
 	/* Bake Render options */
-	short bake_osa, bake_filter, bake_mode, bake_flag;
-	short bake_normal_space, bake_quad_split;
-	float bake_maxdist, bake_biasdist;
-	short bake_samples, bake_pad;
-	float bake_user_scale, bake_pad1;
+	short bake_mode, bake_flag;
+	short bake_filter, bake_samples;
+	float bake_biasdist, bake_user_scale;
 
 	/* path to render output */
 	char pic[1024]; /* 1024 = FILE_MAX */
@@ -729,21 +682,11 @@ typedef struct RenderData {
 	char pad5[5];
 
 	/* render simplify */
-	int simplify_flag;
 	short simplify_subsurf;
 	short simplify_subsurf_render;
-	short simplify_shadowsamples, pad9;
+	short pad9, pad10;
 	float simplify_particles;
 	float simplify_particles_render;
-	float simplify_aosss;
-
-	/* cineon */
-	short cineonwhite  DNA_DEPRECATED, cineonblack  DNA_DEPRECATED;  /*deprecated*/
-	float cineongamma  DNA_DEPRECATED;  /*deprecated*/
-	
-	/* jpeg2000 */
-	short jp2_preset  DNA_DEPRECATED, jp2_depth  DNA_DEPRECATED;  /*deprecated*/
-	int rpad3;
 
 	/* Freestyle line thickness options */
 	int line_thickness_mode;
@@ -751,6 +694,7 @@ typedef struct RenderData {
 
 	/* render engine */
 	char engine[32];
+	int pad2;
 
 	/* Cycles baking */
 	struct BakeData bake;
@@ -1540,25 +1484,25 @@ typedef struct Scene {
 
 /* RenderData.mode */
 #define R_OSA			0x0001
-#define R_SHADOW		0x0002
-#define R_GAMMA			0x0004
-#define R_ORTHO			0x0008
-#define R_ENVMAP		0x0010
-#define R_EDGE			0x0020
-#define R_FIELDS		0x0040
-#define R_FIELDSTILL	0x0080
+/* #define R_SHADOW		0x0002 */
+/* #define R_GAMMA			0x0004 */
+#define R_ORTHO			0x0008 
+/* #define R_ENVMAP		0x0010 */
+/* #define R_EDGE			0x0020 */
+/* #define R_FIELDS		0x0040 */
+/*#define R_FIELDSTILL	0x0080 */
 /*#define R_RADIO			0x0100 */ /* deprecated */
 #define R_BORDER		0x0200
-#define R_PANORAMA		0x0400	/* deprecated as scene option, still used in renderer */
+#define R_PANORAMA		0x0400
 #define R_CROP			0x0800
 		/* Disable camera switching: runtime (DURIAN_CAMERA_SWITCH) */
 #define R_NO_CAMERA_SWITCH	0x1000
-#define R_ODDFIELD		0x2000
+/* #define R_ODDFIELD		0x2000 */
 #define R_MBLUR			0x4000
 		/* unified was here */
-#define R_RAYTRACE      0x10000
+/* #define R_RAYTRACE      0x10000 */
 		/* R_GAUSS is obsolete, but used to retrieve setting from old files */
-#define R_GAUSS      	0x20000
+/* #define R_GAUSS      	0x20000 */
 		/* fbuf obsolete... */
 /*#define R_FBUF			0x40000*/
 		/* threads obsolete... is there for old files, now use for autodetect threads */
@@ -1566,14 +1510,14 @@ typedef struct Scene {
 		/* Use the same flag for autothreads */
 #define R_FIXED_THREADS		0x80000 
 
-#define R_SPEED				0x100000
-#define R_SSS				0x200000
+/* #define R_SPEED				0x100000 */
+/* #define R_SSS				0x200000 */
 #define R_NO_OVERWRITE		0x400000  /* skip existing files */
 #define R_TOUCH				0x800000  /* touch files before rendering */
 #define R_SIMPLIFY			0x1000000
 #define R_EDGE_FRS			0x2000000 /* R_EDGE reserved for Freestyle */
 #define R_PERSISTENT_DATA	0x4000000 /* keep data around for re-render */
-#define R_USE_WS_SHADING	0x8000000 /* use world space interpretation of lighting data */
+/* #define R_USE_WS_SHADING	0x8000000 */ /* use world space interpretation of lighting data */
 
 /* RenderData.seq_flag */
 enum {
@@ -1590,7 +1534,7 @@ enum {
 #define R_OUTPUT_NONE	3
 /*#define R_OUTPUT_FORKED	4*/
 
-/* RenderData.filtertype */
+/* RenderData.filtertype (used for nodes) */
 #define R_FILTER_BOX	0
 #define R_FILTER_TENT	1
 #define R_FILTER_QUAD	2
@@ -1598,19 +1542,7 @@ enum {
 #define R_FILTER_CATROM	4
 #define R_FILTER_GAUSS	5
 #define R_FILTER_MITCH	6
-#define R_FILTER_FAST_GAUSS	7 /* note, this is only used for nodes at the moment */
-
-/* RenderData.raytrace_structure */
-#define R_RAYSTRUCTURE_AUTO				0
-#define R_RAYSTRUCTURE_OCTREE			1
-#define R_RAYSTRUCTURE_BLIBVH			2	/* removed */
-#define R_RAYSTRUCTURE_VBVH				3
-#define R_RAYSTRUCTURE_SIMD_SVBVH		4	/* needs SIMD */
-#define R_RAYSTRUCTURE_SIMD_QBVH		5	/* needs SIMD */
-
-/* RenderData.raytrace_options */
-#define R_RAYTRACE_USE_LOCAL_COORDS		0x0001
-#define R_RAYTRACE_USE_INSTANCES		0x0002
+#define R_FILTER_FAST_GAUSS	7
 
 /* RenderData.scemode (int now) */
 #define R_DOSEQ				0x0001
@@ -1622,12 +1554,12 @@ enum {
 #define R_MATNODE_PREVIEW	0x0020
 #define R_DOCOMP			0x0040
 #define R_COMP_CROP			0x0080
-#define R_FREE_IMAGE		0x0100
+/* #define R_FREE_IMAGE		0x0100 */
 #define R_SINGLE_LAYER		0x0200
 #define R_EXR_TILE_FILE		0x0400
 /* #define R_COMP_FREE			0x0800 */
 #define R_NO_IMAGE_LOAD		0x1000
-#define R_NO_TEX			0x2000
+/* #define R_NO_TEX			0x2000 */
 #define R_NO_FRAME_UPDATE	0x4000
 #define R_FULL_SAMPLE		0x8000
 /* #define R_DEPRECATED		0x10000 */
@@ -1690,12 +1622,12 @@ enum {
 /* bake_mode: same as RE_BAKE_xxx defines */
 /* RenderData.bake_flag */
 #define R_BAKE_CLEAR		1
-#define R_BAKE_OSA			2
+/* #define R_BAKE_OSA		2 */ /* deprecated */
 #define R_BAKE_TO_ACTIVE	4
-#define R_BAKE_NORMALIZE	8
+/* #define R_BAKE_NORMALIZE	8 */ /* deprecated */
 #define R_BAKE_MULTIRES		16
 #define R_BAKE_LORES_MESH	32
-#define R_BAKE_VCOL			64
+/* #define R_BAKE_VCOL		64 */ /* deprecated */
 #define R_BAKE_USERSCALE	128
 #define R_BAKE_CAGE			256
 #define R_BAKE_SPLIT_MAT	512
@@ -1707,9 +1639,6 @@ enum {
 #define R_BAKE_SPACE_OBJECT	 2
 #define R_BAKE_SPACE_TANGENT 3
 
-/* RenderData.simplify_flag */
-#define R_SIMPLE_NO_TRIANGULATE		1
-
 /* RenderData.line_thickness_mode */
 #define R_LINE_THICKNESS_ABSOLUTE 1
 #define R_LINE_THICKNESS_RELATIVE 2
@@ -1717,7 +1646,6 @@ enum {
 /* sequencer seq_prev_type seq_rend_type */
 
 /* RenderData.engine (scene.c) */
-extern const char *RE_engine_id_BLENDER_RENDER;
 extern const char *RE_engine_id_BLENDER_CLAY;
 extern const char *RE_engine_id_BLENDER_EEVEE;
 extern const char *RE_engine_id_BLENDER_WORKBENCH;