Smoke:

* cache for low res (deactivating high res for now)
* new way of view3d rendering of smoke (no longer 3 axes) -using 3dtexture now (introduced into gpu/intern)
* introducing LZO and LZMA libs into extern (makefiles missing for now)
* reducing memory usage after simulating for the frame ended (freeing temporary buffers)
* splitting smoke into 2 modifier for the cache-sake (it cannot handle more than 1 cache on the same modifier-index)
* no color on gui anymore
* fixing non-power-of-2 resolutions (hopefully)
* fixing select-deselect of domain drawing bug
* fixing drawobject.c coding style (making Ton happy) ;-)

HINT #1: If scons doesn't work -> cmakefiles are up-to-date, couldn't test scons (but i tried to mantain them, too)

CODERS HINT #1: we really need a way to disable adding all modifiers through "Add Modifiers" dropdown!

WARNING #1: before applying this commit, deactivate your SMOKE DOMAIN in your old files and save them then. You can open them then savely after that.

WARNING #2: File and cache format of smoke can be changed, this is not final!

1 files changed, 304 insertions, 0 deletions

diff --git a/source/blender/editors/space_view3d/drawvolume.c b/source/blender/editors/space_view3d/drawvolume.c
new file mode 100644
index 00000000000..221003360f4
--- /dev/null
+++ b/source/blender/editors/space_view3d/drawvolume.c
@@ -0,0 +1,304 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * Contributor(s): Daniel Genrich
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+
+#include <string.h>
+#include <math.h>
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "MEM_guardedalloc.h"
+
+#include "IMB_imbuf.h"
+
+
+#include "MTC_matrixops.h"
+
+#include "DNA_armature_types.h"
+#include "DNA_boid_types.h"
+#include "DNA_camera_types.h"
+#include "DNA_curve_types.h"
+#include "DNA_constraint_types.h" // for drawing constraint
+#include "DNA_effect_types.h"
+#include "DNA_lamp_types.h"
+#include "DNA_lattice_types.h"
+#include "DNA_material_types.h"
+#include "DNA_mesh_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_meta_types.h"
+#include "DNA_modifier_types.h"
+#include "DNA_object_types.h"
+#include "DNA_object_force.h"
+#include "DNA_object_fluidsim.h"
+#include "DNA_particle_types.h"
+#include "DNA_space_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_smoke_types.h"
+#include "DNA_userdef_types.h"
+#include "DNA_view3d_types.h"
+#include "DNA_world_types.h"
+
+#include "BLI_blenlib.h"
+#include "BLI_arithb.h"
+#include "BLI_editVert.h"
+#include "BLI_edgehash.h"
+#include "BLI_rand.h"
+
+#include "BKE_anim.h"			//for the where_on_path function
+#include "BKE_curve.h"
+#include "BKE_constraint.h" // for the get_constraint_target function
+#include "BKE_DerivedMesh.h"
+#include "BKE_deform.h"
+#include "BKE_displist.h"
+#include "BKE_effect.h"
+#include "BKE_font.h"
+#include "BKE_global.h"
+#include "BKE_image.h"
+#include "BKE_key.h"
+#include "BKE_lattice.h"
+#include "BKE_mesh.h"
+#include "BKE_material.h"
+#include "BKE_mball.h"
+#include "BKE_modifier.h"
+#include "BKE_object.h"
+#include "BKE_paint.h"
+#include "BKE_particle.h"
+#include "BKE_property.h"
+#include "BKE_smoke.h"
+#include "BKE_unit.h"
+#include "BKE_utildefines.h"
+#include "smoke_API.h"
+
+#include "BIF_gl.h"
+#include "BIF_glutil.h"
+
+#include "GPU_draw.h"
+#include "GPU_material.h"
+#include "GPU_extensions.h"
+
+#include "ED_mesh.h"
+#include "ED_particle.h"
+#include "ED_screen.h"
+#include "ED_types.h"
+#include "ED_util.h"
+
+#include "UI_resources.h"
+#include "UI_interface_icons.h"
+
+#include "WM_api.h"
+#include "BLF_api.h"
+
+#include "GPU_extensions.h"
+
+#include "view3d_intern.h"	// own include
+
+struct GPUTexture;
+
+/* draw slices of smoke is adapted from c++ code authored by: Johannes Schmid and Ingemar Rask, 2006, johnny@grob.org */
+static float cv[][3] = {
+	{1.0f, 1.0f, 1.0f}, {-1.0f, 1.0f, 1.0f}, {-1.0f, -1.0f, 1.0f}, {1.0f, -1.0f, 1.0f},
+	{1.0f, 1.0f, -1.0f}, {-1.0f, 1.0f, -1.0f}, {-1.0f, -1.0f, -1.0f}, {1.0f, -1.0f, -1.0f}
+};
+
+// edges have the form edges[n][0][xyz] + t*edges[n][1][xyz]
+static float edges[12][2][3] = {
+	{{1.0f, 1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+	{{-1.0f, 1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+	{{-1.0f, -1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+	{{1.0f, -1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+
+	{{1.0f, -1.0f, 1.0f}, {0.0f, 1.0f, 0.0f}},
+	{{-1.0f, -1.0f, 1.0f}, {0.0f, 1.0f, 0.0f}},
+	{{-1.0f, -1.0f, -1.0f}, {0.0f, 1.0f, 0.0f}},
+	{{1.0f, -1.0f, -1.0f}, {0.0f, 1.0f, 0.0f}},
+
+	{{-1.0f, 1.0f, 1.0f}, {1.0f, 0.0f, 0.0f}},
+	{{-1.0f, -1.0f, 1.0f}, {1.0f, 0.0f, 0.0f}},
+	{{-1.0f, -1.0f, -1.0f}, {1.0f, 0.0f, 0.0f}},
+	{{-1.0f, 1.0f, -1.0f}, {1.0f, 0.0f, 0.0f}}
+};
+
+int intersect_edges(float *points, float a, float b, float c, float d)
+{
+	int i;
+	float t;
+	int numpoints = 0;
+	
+	for (i=0; i<12; i++) {
+		t = -(a*edges[i][0][0] + b*edges[i][0][1] + c*edges[i][0][2] + d)
+			/ (a*edges[i][1][0] + b*edges[i][1][1] + c*edges[i][1][2]);
+		if ((t>0)&&(t<2)) {
+			points[numpoints * 3 + 0] = edges[i][0][0] + edges[i][1][0]*t;
+			points[numpoints * 3 + 1] = edges[i][0][1] + edges[i][1][1]*t;
+			points[numpoints * 3 + 2] = edges[i][0][2] + edges[i][1][2]*t;
+			numpoints++;
+		}
+	}
+	return numpoints;
+}
+
+static int convex(float *p0, float *up, float *a, float *b)
+{
+	// Vec3 va = a-p0, vb = b-p0;
+	float va[3], vb[3], tmp[3];
+	VECSUB(va, a, p0);
+	VECSUB(vb, b, p0);
+	Crossf(tmp, va, vb);
+	return INPR(up, tmp) >= 0;
+}
+
+// copied from gpu_extension.c
+static int is_pow2(int n)
+{
+	return ((n)&(n-1))==0;
+}
+
+static int larger_pow2(int n)
+{
+	if (is_pow2(n))
+		return n;
+
+	while(!is_pow2(n))
+		n= n&(n-1);
+
+	return n*2;
+}
+
+void draw_volume(Scene *scene, ARegion *ar, View3D *v3d, Base *base, GPUTexture *tex, int res[3])
+{
+	Object *ob = base->object;
+	RegionView3D *rv3d= ar->regiondata;
+
+	float viewnormal[3];
+	// int res[3];
+	int i, j, n;
+	float d, d0, dd;
+	float *points = NULL;
+	int numpoints = 0;
+	float cor[3] = {1.,1.,1.};
+
+	/*
+	res[0] = smd->domain->res[0];
+	res[1] = smd->domain->res[1];
+	res[2] = smd->domain->res[2];
+	*/
+
+	wmLoadMatrix(rv3d->viewmat);
+
+	glDepthMask(GL_FALSE);
+	glEnable(GL_TEXTURE_3D);
+	glDisable(GL_DEPTH_TEST);
+	glEnable(GL_BLEND);
+	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+	// get view vector
+	VECCOPY(viewnormal, rv3d->viewinv[2]);
+	Normalize(viewnormal);
+
+	// find cube vertex that is closest to the viewer
+	for (i=0; i<8; i++) {
+		float x,y,z;
+
+		x = cv[i][0] + viewnormal[0];
+		y = cv[i][1] + viewnormal[1];
+		z = cv[i][2] + viewnormal[2];
+
+		if ((x>=-1.0f)&&(x<=1.0f)
+			&&(y>=-1.0f)&&(y<=1.0f)
+			&&(z>=-1.0f)&&(z<=1.0f)) {
+			break;
+		}
+	}
+
+	GPU_texture_bind(tex, 0);
+
+	cor[0] = (float)res[0]/(float)larger_pow2(res[0]);
+	cor[1] = (float)res[1]/(float)larger_pow2(res[1]);
+	cor[2] = (float)res[2]/(float)larger_pow2(res[2]);
+
+	// our slices are defined by the plane equation a*x + b*y +c*z + d = 0
+	// (a,b,c), the plane normal, are given by viewdir
+	// d is the parameter along the view direction. the first d is given by
+	// inserting previously found vertex into the plane equation
+	d0 = -(viewnormal[0]*cv[i][0] + viewnormal[1]*cv[i][1] + viewnormal[2]*cv[i][2]);
+	dd = 2.0*d0/64.0f;
+	n = 0;
+
+	// printf("d0: %f, dd: %f\n", d0, dd);
+
+	points = MEM_callocN(sizeof(float)*12*3, "smoke_points_preview");
+
+	for (d = d0; d > -d0; d -= dd) {
+		float p0[3];
+		// intersect_edges returns the intersection points of all cube edges with
+		// the given plane that lie within the cube
+		numpoints = intersect_edges(points, viewnormal[0], viewnormal[1], viewnormal[2], d);
+
+		if (numpoints > 2) {
+			VECCOPY(p0, points);
+
+			// sort points to get a convex polygon
+			for(i = 1; i < numpoints - 1; i++)
+			{
+				for(j = i + 1; j < numpoints; j++)
+				{
+					if(convex(p0, viewnormal, &points[j * 3], &points[i * 3]))
+					{
+						float tmp2[3];
+						VECCOPY(tmp2, &points[i * 3]);
+						VECCOPY(&points[i * 3], &points[j * 3]);
+						VECCOPY(&points[j * 3], tmp2);
+					}
+				}
+			}
+
+			glBegin(GL_POLYGON);
+			for (i = 0; i < numpoints; i++) {
+				glColor3f(1.0, 1.0, 1.0);
+				glTexCoord3d((points[i * 3 + 0] + 1.0)*cor[0]/2.0, (points[i * 3 + 1] + 1)*cor[1]/2.0, (points[i * 3 + 2] + 1.0)*cor[2]/2.0);
+				glVertex3f(points[i * 3 + 0], points[i * 3 + 1], points[i * 3 + 2]);
+			}
+			glEnd();
+		}
+		n++;
+	}
+
+	GPU_texture_unbind(tex);
+
+	MEM_freeN(points);
+
+	wmMultMatrix(ob->obmat);	
+
+	glDisable(GL_TEXTURE_3D);
+	glDisable(GL_BLEND);
+	glEnable(GL_DEPTH_TEST);
+	glDepthMask(GL_TRUE);	
+}
+