]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_rmain.c
logarithm
[xonotic/darkplaces.git] / gl_rmain.c
index aaf4356b57cceebcd2d6dc74522a9aa4c33849ec..5e7bcb1a7849ef5f4e8f3c999c5ef3335b8388ea 100644 (file)
@@ -85,7 +85,9 @@ cvar_t r_shadows_drawafterrtlighting = {CVAR_SAVE, "r_shadows_drawafterrtlightin
 cvar_t r_shadows_castfrombmodels = {CVAR_SAVE, "r_shadows_castfrombmodels", "0", "do cast shadows from bmodels"};
 cvar_t r_q1bsp_skymasking = {0, "r_q1bsp_skymasking", "1", "allows sky polygons in quake1 maps to obscure other geometry"};
 cvar_t r_polygonoffset_submodel_factor = {0, "r_polygonoffset_submodel_factor", "0", "biases depth values of world submodels such as doors, to prevent z-fighting artifacts in Quake maps"};
-cvar_t r_polygonoffset_submodel_offset = {0, "r_polygonoffset_submodel_offset", "4", "biases depth values of world submodels such as doors, to prevent z-fighting artifacts in Quake maps"};
+cvar_t r_polygonoffset_submodel_offset = {0, "r_polygonoffset_submodel_offset", "14", "biases depth values of world submodels such as doors, to prevent z-fighting artifacts in Quake maps"};
+cvar_t r_polygonoffset_decals_factor = {0, "r_polygonoffset_decals_factor", "0", "biases depth values of decals to prevent z-fighting artifacts"};
+cvar_t r_polygonoffset_decals_offset = {0, "r_polygonoffset_decals_offset", "-14", "biases depth values of decals to prevent z-fighting artifacts"};
 cvar_t r_fog_exp2 = {0, "r_fog_exp2", "0", "uses GL_EXP2 fog (as in Nehahra) rather than realistic GL_EXP fog"};
 cvar_t r_drawfog = {CVAR_SAVE, "r_drawfog", "1", "allows one to disable fog rendering"};
 
@@ -262,7 +264,7 @@ void FOG_clear(void)
        r_refdef.fog_blue = 0;
        r_refdef.fog_alpha = 1;
        r_refdef.fog_start = 0;
-       r_refdef.fog_end = 0;
+       r_refdef.fog_end = 16384;
        r_refdef.fog_height = 1<<30;
        r_refdef.fog_fadedepth = 128;
 }
@@ -3014,6 +3016,8 @@ void GL_Main_Init(void)
        Cvar_RegisterVariable(&r_q1bsp_skymasking);
        Cvar_RegisterVariable(&r_polygonoffset_submodel_factor);
        Cvar_RegisterVariable(&r_polygonoffset_submodel_offset);
+       Cvar_RegisterVariable(&r_polygonoffset_decals_factor);
+       Cvar_RegisterVariable(&r_polygonoffset_decals_offset);
        Cvar_RegisterVariable(&r_fog_exp2);
        Cvar_RegisterVariable(&r_drawfog);
        Cvar_RegisterVariable(&r_textureunits);
@@ -3645,6 +3649,28 @@ static void R_DrawModelsAddWaterPlanes(void)
        }
 }
 
+static void R_DrawModelDecals_Entity(entity_render_t *ent);
+static void R_DrawModelDecals(void)
+{
+       int i;
+       entity_render_t *ent;
+
+       R_DrawModelDecals_Entity(r_refdef.scene.worldentity);
+
+       if (!r_drawentities.integer || r_showsurfaces.integer)
+               return;
+
+       for (i = 0;i < r_refdef.scene.numentities;i++)
+       {
+               if (!r_refdef.viewcache.entityvisible[i])
+                       continue;
+               ent = r_refdef.scene.entities[i];
+               r_refdef.stats.entities++;
+               if (ent->decalsystem.numdecals)
+                       R_DrawModelDecals_Entity(ent);
+       }
+}
+
 static void R_View_SetFrustum(void)
 {
        int i;
@@ -4934,6 +4960,7 @@ extern void R_DrawPortals (void);
 extern cvar_t cl_locs_show;
 static void R_DrawLocs(void);
 static void R_DrawEntityBBoxes(void);
+extern cvar_t cl_decals_newsystem;
 void R_RenderScene(void)
 {
        r_refdef.stats.renders++;
@@ -5037,13 +5064,18 @@ void R_RenderScene(void)
 
        if (cl.csqc_vidvars.drawworld)
        {
-               R_DrawLightningBeams();
-               if (r_timereport_active)
-                       R_TimeReport("lightning");
-
-               R_DrawDecals();
-               if (r_timereport_active)
-                       R_TimeReport("decals");
+               if (cl_decals_newsystem.integer)
+               {
+                       R_DrawModelDecals();
+                       if (r_timereport_active)
+                               R_TimeReport("modeldecals");
+               }
+               else
+               {
+                       R_DrawDecals();
+                       if (r_timereport_active)
+                               R_TimeReport("decals");
+               }
 
                R_DrawParticles();
                if (r_timereport_active)
@@ -5052,6 +5084,10 @@ void R_RenderScene(void)
                R_DrawExplosions();
                if (r_timereport_active)
                        R_TimeReport("explosions");
+
+               R_DrawLightningBeams();
+               if (r_timereport_active)
+                       R_TimeReport("lightning");
        }
 
        R_SetupGenericShader(true);
@@ -8124,6 +8160,8 @@ void R_DecalSystem_SpawnTriangle(decalsystem_t *decalsystem, const float *v0, co
 {
        float *v3f;
        float *tc2f;
+       float *c4f;
+       float ca;
        tridecal_t *decal;
        tridecal_t *decals;
        int i;
@@ -8136,12 +8174,12 @@ void R_DecalSystem_SpawnTriangle(decalsystem_t *decalsystem, const float *v0, co
                qboolean useshortelements;
                decalsystem->maxdecals = max(16, decalsystem->maxdecals * 2);
                useshortelements = decalsystem->maxdecals * 3 <= 65536;
-               decalsystem->decals = Mem_Alloc(r_main_mempool, decalsystem->maxdecals * (sizeof(tridecal_t) + sizeof(float[3][3]) + sizeof(float[3][2]) + sizeof(float[3][4]) + sizeof(int[3]) + useshortelements ? sizeof(unsigned short[3]) : 0));
-               decalsystem->vertex3f = (float *)(decalsystem->decals + decalsystem->maxdecals);
-               decalsystem->texcoord2f = (float *)(decalsystem->vertex3f + decalsystem->maxdecals*9);
-               decalsystem->color4f = (float *)(decalsystem->texcoord2f + decalsystem->maxdecals*6);
-               decalsystem->element3i = (int *)(decalsystem->color4f + decalsystem->maxdecals*12);
-               decalsystem->element3s = useshortelements ? (unsigned short *)(decalsystem->element3i + decalsystem->maxdecals*3) : NULL;
+               decalsystem->decals = Mem_Alloc(cls.levelmempool, decalsystem->maxdecals * (sizeof(tridecal_t) + sizeof(float[3][3]) + sizeof(float[3][2]) + sizeof(float[3][4]) + sizeof(int[3]) + (useshortelements ? sizeof(unsigned short[3]) : 0)));
+               decalsystem->color4f = (float *)(decalsystem->decals + decalsystem->maxdecals);
+               decalsystem->texcoord2f = (float *)(decalsystem->color4f + decalsystem->maxdecals*12);
+               decalsystem->vertex3f = (float *)(decalsystem->texcoord2f + decalsystem->maxdecals*6);
+               decalsystem->element3i = (int *)(decalsystem->vertex3f + decalsystem->maxdecals*9);
+               decalsystem->element3s = (useshortelements ? ((unsigned short *)(decalsystem->element3i + decalsystem->maxdecals*3)) : NULL);
                if (decalsystem->numdecals)
                {
                        memcpy(decalsystem->decals, old.decals, decalsystem->numdecals * sizeof(tridecal_t));
@@ -8149,6 +8187,7 @@ void R_DecalSystem_SpawnTriangle(decalsystem_t *decalsystem, const float *v0, co
                        memcpy(decalsystem->texcoord2f, old.texcoord2f, decalsystem->numdecals * sizeof(float[3][2]));
                        memcpy(decalsystem->color4f, old.color4f, decalsystem->numdecals * sizeof(float[3][4]));
                }
+               Mem_Free(old.decals);
                for (i = 0;i < decalsystem->maxdecals*3;i++)
                        decalsystem->element3i[i] = i;
                if (useshortelements)
@@ -8162,27 +8201,28 @@ void R_DecalSystem_SpawnTriangle(decalsystem_t *decalsystem, const float *v0, co
        decal = decalsystem->decals + (i = decalsystem->freedecal++);
        v3f = decalsystem->vertex3f + 9*i;
        tc2f = decalsystem->texcoord2f + 6*i;
-       for (i = decalsystem->freedecal;i < maxdecals && decals[i].alpha;i++)
+       c4f = decalsystem->color4f + 12*i;
+       for (i = decalsystem->freedecal;i < maxdecals && decals[i].colors[0][3];i++)
                ;
        decalsystem->freedecal = i;
        if (decalsystem->numdecals <= i)
                decalsystem->numdecals = i + 1;
 
        // initialize the decal
-       decal->fade = cl_decals_time.value;
-       decal->alpha = 1.0f;
+       decal->lived = 0;
+       decal->triangleindex = triangleindex;
        decal->colors[0][0] = (unsigned char)(c0[0]*255.0f);
        decal->colors[0][1] = (unsigned char)(c0[1]*255.0f);
        decal->colors[0][2] = (unsigned char)(c0[2]*255.0f);
-       decal->colors[0][3] = (unsigned char)(c0[3]*255.0f);
+       decal->colors[0][3] = 255;
        decal->colors[1][0] = (unsigned char)(c1[0]*255.0f);
        decal->colors[1][1] = (unsigned char)(c1[1]*255.0f);
        decal->colors[1][2] = (unsigned char)(c1[2]*255.0f);
-       decal->colors[1][3] = (unsigned char)(c1[3]*255.0f);
+       decal->colors[1][3] = 255;
        decal->colors[2][0] = (unsigned char)(c2[0]*255.0f);
        decal->colors[2][1] = (unsigned char)(c2[1]*255.0f);
        decal->colors[2][2] = (unsigned char)(c2[2]*255.0f);
-       decal->colors[2][3] = (unsigned char)(c2[3]*255.0f);
+       decal->colors[2][3] = 255;
        v3f[0] = v0[0];
        v3f[1] = v0[1];
        v3f[2] = v0[2];
@@ -8198,146 +8238,280 @@ void R_DecalSystem_SpawnTriangle(decalsystem_t *decalsystem, const float *v0, co
        tc2f[3] = t1[1];
        tc2f[4] = t2[0];
        tc2f[5] = t2[1];
-}
-
-void R_DecalSystem_Splat(decalsystem_t *decalsystem, int numvertices, const float *vertex3f, int numtriangles, const int *element3i, const matrix4x4_t *projection, float r, float g, float b, float a, qboolean dynamic)
-{
-       int vertexindex;
+       ca = (1.0f/255.0f);
+       c4f[ 0] = decal->colors[0][0] * ca;
+       c4f[ 1] = decal->colors[0][1] * ca;
+       c4f[ 2] = decal->colors[0][2] * ca;
+       c4f[ 3] = 1;
+       c4f[ 4] = decal->colors[1][0] * ca;
+       c4f[ 5] = decal->colors[1][1] * ca;
+       c4f[ 6] = decal->colors[1][2] * ca;
+       c4f[ 7] = 1;
+       c4f[ 8] = decal->colors[2][0] * ca;
+       c4f[ 9] = decal->colors[2][1] * ca;
+       c4f[10] = decal->colors[2][2] * ca;
+       c4f[11] = 1;
+}
+
+extern cvar_t cl_decals_bias;
+void R_DecalSystem_SplatEntity(entity_render_t *ent, const vec3_t worldorigin, const vec3_t worldnormal, float r, float g, float b, float a, float s1, float t1, float s2, float t2, float worldsize)
+{
+       matrix4x4_t projection;
+       decalsystem_t *decalsystem;
+       qboolean dynamic;
+       dp_model_t *model;
+       const float *vertex3f;
+       const msurface_t *surface;
+       const msurface_t *surfaces;
+       const int *surfacelist;
+       int numvertices;
+       int numtriangles;
+       int numsurfacelist;
+       int surfacelistindex;
        int triangleindex;
        int cornerindex;
        int index;
        int numpoints;
        const int *e;
+       float localorigin[3];
+       float localnormal[3];
+       float localmins[3];
+       float localmaxs[3];
+       float localsize;
+       float ilocalsize;
        float v[9][3];
-       float tc[9][3]; // third coord is distance fade
+       float tc[9][2];
        float c[9][4];
-       float *temp;
-       float origin[3];
-       float normal[3];
-       float planes[6][3];
+       //float normal[3];
+       float planes[6][4];
        float f;
        float points[2][9][3];
-       temp = Mem_Alloc(tempmempool, numvertices * sizeof(float[3]));
-       for (vertexindex = 0;vertexindex < numvertices;vertexindex++)
-               Matrix4x4_Transform(projection, vertex3f + 3*vertexindex, temp + 3*vertexindex);
-       for (triangleindex = 0, e = element3i;triangleindex < numtriangles;triangleindex++, e += 3)
+       float angles[3];
+       float temp[3];
+
+       model = ent->model;
+       if (!model || !ent->allowdecals || ent->alpha < 1 || (ent->flags & (RENDER_ADDITIVE | RENDER_NODEPTHTEST)))
        {
-               for (cornerindex = 0;cornerindex < 3;cornerindex++)
-               {
-                       index = 3*e[cornerindex];
-                       VectorCopy(temp + index, tc[cornerindex]);
-               }
-               // cull triangles that are entirely outside the projection
-               if (min(tc[0][0], min(tc[1][0], tc[2][0])) >=  1)
-                       continue;
-               if (min(tc[0][1], min(tc[1][1], tc[2][1])) >=  1)
-                       continue;
-               if (min(tc[0][2], min(tc[1][2], tc[2][2])) >=  1)
-                       continue;
-               if (max(tc[0][0], max(tc[1][0], tc[2][0])) <= -1)
-                       continue;
-               if (max(tc[0][1], max(tc[1][1], tc[2][1])) <= -1)
-                       continue;
-               if (max(tc[0][2], max(tc[1][2], tc[2][2])) <= -1)
+               R_DecalSystem_Reset(&ent->decalsystem);
+               return;
+       }
+
+       decalsystem = &ent->decalsystem;
+       if (decalsystem->model != model)
+               R_DecalSystem_Reset(decalsystem);
+       decalsystem->model = model;
+
+       RSurf_ActiveModelEntity(ent, false, false);
+
+       Matrix4x4_Transform(&rsurface.inversematrix, worldorigin, localorigin);
+       Matrix4x4_Transform3x3(&rsurface.inversematrix, worldnormal, localnormal);
+       VectorNormalize(localnormal);
+       localsize = worldsize*rsurface.inversematrixscale;
+       ilocalsize = 1.0f / localsize;
+       localmins[0] = localorigin[0] - localsize;
+       localmins[1] = localorigin[1] - localsize;
+       localmins[2] = localorigin[2] - localsize;
+       localmaxs[0] = localorigin[0] + localsize;
+       localmaxs[1] = localorigin[1] + localsize;
+       localmaxs[2] = localorigin[2] + localsize;
+
+       //VectorCopy(localnormal, planes[4]);
+       //VectorVectors(planes[4], planes[2], planes[0]);
+       AnglesFromVectors(angles, localnormal, NULL, false);
+       AngleVectors(angles, planes[0], planes[2], planes[4]);
+       VectorNegate(planes[0], planes[1]);
+       VectorNegate(planes[2], planes[3]);
+       VectorNegate(planes[4], planes[5]);
+       planes[0][3] = DotProduct(planes[0], localorigin) - localsize;
+       planes[1][3] = DotProduct(planes[1], localorigin) - localsize;
+       planes[2][3] = DotProduct(planes[2], localorigin) - localsize;
+       planes[3][3] = DotProduct(planes[3], localorigin) - localsize;
+       planes[4][3] = DotProduct(planes[4], localorigin) - localsize;
+       planes[5][3] = DotProduct(planes[5], localorigin) - localsize;
+
+#if 1
+// works
+{
+       matrix4x4_t forwardprojection;
+       Matrix4x4_CreateFromQuakeEntity(&forwardprojection, localorigin[0], localorigin[1], localorigin[2], angles[0], angles[1], angles[2], localsize);
+       Matrix4x4_Invert_Simple(&projection, &forwardprojection);
+}
+#else
+// broken
+{
+       float projectionvector[4][3];
+       VectorScale(planes[0], ilocalsize, projectionvector[0]);
+       VectorScale(planes[2], ilocalsize, projectionvector[1]);
+       VectorScale(planes[4], ilocalsize, projectionvector[2]);
+       projectionvector[0][0] = planes[0][0] * ilocalsize;
+       projectionvector[0][1] = planes[1][0] * ilocalsize;
+       projectionvector[0][2] = planes[2][0] * ilocalsize;
+       projectionvector[1][0] = planes[0][1] * ilocalsize;
+       projectionvector[1][1] = planes[1][1] * ilocalsize;
+       projectionvector[1][2] = planes[2][1] * ilocalsize;
+       projectionvector[2][0] = planes[0][2] * ilocalsize;
+       projectionvector[2][1] = planes[1][2] * ilocalsize;
+       projectionvector[2][2] = planes[2][2] * ilocalsize;
+       projectionvector[3][0] = -(localorigin[0]*projectionvector[0][0]+localorigin[1]*projectionvector[1][0]+localorigin[2]*projectionvector[2][0]);
+       projectionvector[3][1] = -(localorigin[0]*projectionvector[0][1]+localorigin[1]*projectionvector[1][1]+localorigin[2]*projectionvector[2][1]);
+       projectionvector[3][2] = -(localorigin[0]*projectionvector[0][2]+localorigin[1]*projectionvector[1][2]+localorigin[2]*projectionvector[2][2]);
+       Matrix4x4_FromVectors(&projection, projectionvector[0], projectionvector[1], projectionvector[2], projectionvector[3]);
+}
+#endif
+
+       dynamic = model->surfmesh.isanimated;
+       vertex3f = rsurface.modelvertex3f;
+       numsurfacelist = model->nummodelsurfaces;
+       surfacelist = model->sortedmodelsurfaces;
+       surfaces = model->data_surfaces;
+       for (surfacelistindex = 0;surfacelistindex < numsurfacelist;surfacelistindex++)
+       {
+               surface = surfaces + surfacelist[surfacelistindex];
+               // skip transparent surfaces
+               if ((surface->texture->surfaceflags & Q3SURFACEFLAG_NOMARKS) || surface->texture->currentalpha < 1 || (surface->texture->currentmaterialflags & (MATERIALFLAG_BLENDED | MATERIALFLAG_NODEPTHTEST | MATERIALFLAG_SKY | MATERIALFLAG_SHORTDEPTHRANGE | MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION)))
                        continue;
-               // cull backfaces
-               TriangleNormal(tc[0], tc[1], tc[2], normal);
-               if (normal[2] < 0)
+               if (!dynamic && !BoxesOverlap(surface->mins, surface->maxs, localmins, localmaxs))
                        continue;
-               // we accept this triangle
-               for (cornerindex = 0;cornerindex < 3;cornerindex++)
-               {
-                       index = 3*e[cornerindex];
-                       VectorCopy(vertex3f + index, v[cornerindex]);
-                       // calculate distance fade from the projection origin
-                       f = a * (1-fabs(tc[cornerindex][2]));
-                       c[cornerindex][0] = r * f;
-                       c[cornerindex][1] = g * f;
-                       c[cornerindex][2] = b * f;
-                       c[cornerindex][3] = 1;
-               }
-               if (dynamic)
-               {
-                       R_DecalSystem_SpawnTriangle(decalsystem, v[0], v[1], v[2], tc[0], tc[1], tc[2], c[0], c[1], c[2], triangleindex);
-               }
-               else
+               numvertices = surface->num_vertices;
+               numtriangles = surface->num_triangles;
+               for (triangleindex = 0, e = model->surfmesh.data_element3i + 3*surface->num_firsttriangle;triangleindex < numtriangles;triangleindex++, e += 3)
                {
+                       for (cornerindex = 0;cornerindex < 3;cornerindex++)
+                       {
+                               index = 3*e[cornerindex];
+                               VectorCopy(vertex3f + index, v[cornerindex]);
+                       }
+                       // cull backfaces
+                       //TriangleNormal(v[0], v[1], v[2], normal);
+                       //if (DotProduct(normal, localnormal) < 0.0f)
+                       //      continue;
                        // clip by each of the box planes formed from the projection matrix
-                       Matrix4x4_ToVectors(projection, planes[0], planes[2], planes[4], origin);
-                       VectorNegate(planes[0], planes[1]);
-                       VectorNegate(planes[2], planes[3]);
-                       VectorNegate(planes[4], planes[5]);
-                       VectorCopy(planes[4], normal);
-                       VectorNormalize(normal);
-                       VectorMA(v[0], 0.125f, planes[4], v[0]);
-                       VectorMA(v[1], 0.125f, planes[4], v[1]);
-                       VectorMA(v[2], 0.125f, planes[4], v[2]);
-                       numpoints = PolygonF_Clip(3        , v[0]        , planes[0][0], planes[0][1], planes[0][2], DotProduct(planes[0], origin) - 1, 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
-                       numpoints = PolygonF_Clip(numpoints, points[1][0], planes[1][0], planes[1][1], planes[1][2], DotProduct(planes[1], origin) - 1, 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[0][0]);
-                       numpoints = PolygonF_Clip(numpoints, points[0][0], planes[2][0], planes[2][1], planes[2][2], DotProduct(planes[2], origin) - 1, 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
-                       numpoints = PolygonF_Clip(numpoints, points[1][0], planes[3][0], planes[3][1], planes[3][2], DotProduct(planes[3], origin) - 1, 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[0][0]);
-                       numpoints = PolygonF_Clip(numpoints, points[0][0], planes[4][0], planes[4][1], planes[4][2], DotProduct(planes[4], origin) - 1, 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
-                       numpoints = PolygonF_Clip(numpoints, points[1][0], planes[5][0], planes[5][1], planes[5][2], DotProduct(planes[5], origin) - 1, 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), v[0]);
+                       // if anything survives, we emit the decal
+                       numpoints = PolygonF_Clip(3        , v[0]        , planes[0][0], planes[0][1], planes[0][2], planes[0][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
+                       numpoints = PolygonF_Clip(numpoints, points[1][0], planes[1][0], planes[1][1], planes[1][2], planes[1][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[0][0]);
+                       numpoints = PolygonF_Clip(numpoints, points[0][0], planes[2][0], planes[2][1], planes[2][2], planes[2][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
+                       numpoints = PolygonF_Clip(numpoints, points[1][0], planes[3][0], planes[3][1], planes[3][2], planes[3][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[0][0]);
+                       numpoints = PolygonF_Clip(numpoints, points[0][0], planes[4][0], planes[4][1], planes[4][2], planes[4][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), points[1][0]);
+                       numpoints = PolygonF_Clip(numpoints, points[1][0], planes[5][0], planes[5][1], planes[5][2], planes[5][3], 1.0f/64.0f, sizeof(points[0])/sizeof(points[0][0]), v[0]);
+                       if (numpoints < 3)
+                               continue;
+                       // some part of the triangle survived, so we have to accept it...
+                       if (dynamic)
+                       {
+                               // dynamic always uses the original triangle
+                               numpoints = 3;
+                               for (cornerindex = 0;cornerindex < 3;cornerindex++)
+                               {
+                                       index = 3*e[cornerindex];
+                                       VectorCopy(vertex3f + index, v[cornerindex]);
+                               }
+                       }
                        for (cornerindex = 0;cornerindex < numpoints;cornerindex++)
                        {
                                // convert vertex positions to texcoords
-                               Matrix4x4_Transform(projection, v[cornerindex], tc[cornerindex]);
+                               Matrix4x4_Transform(&projection, v[cornerindex], temp);
+                               tc[cornerindex][0] = (temp[1]+1.0f)*0.5f * (s2-s1) + s1;
+                               tc[cornerindex][1] = (temp[2]+1.0f)*0.5f * (t2-t1) + t1;
                                // calculate distance fade from the projection origin
-                               f = a * (1-fabs(tc[cornerindex][2]));
+                               f = a * (1.0f-fabs(temp[0]));
+                               f = max(0.0f, f);
                                c[cornerindex][0] = r * f;
                                c[cornerindex][1] = g * f;
                                c[cornerindex][2] = b * f;
-                               c[cornerindex][3] = 1;
+                               c[cornerindex][3] = 1.0f;
+                               //VectorMA(v[cornerindex], cl_decals_bias.value, localnormal, v[cornerindex]);
                        }
-                       for (cornerindex = 0;cornerindex < numpoints-2;cornerindex++)
-                               R_DecalSystem_SpawnTriangle(decalsystem, v[0], v[cornerindex+1], v[cornerindex+2], tc[0], tc[cornerindex+1], tc[cornerindex+2], c[0], c[cornerindex+1], c[cornerindex+2], -1);
+                       if (dynamic)
+                               R_DecalSystem_SpawnTriangle(decalsystem, v[0], v[1], v[2], tc[0], tc[1], tc[2], c[0], c[1], c[2], triangleindex);
+                       else
+                               for (cornerindex = 0;cornerindex < numpoints-2;cornerindex++)
+                                       R_DecalSystem_SpawnTriangle(decalsystem, v[0], v[cornerindex+1], v[cornerindex+2], tc[0], tc[cornerindex+1], tc[cornerindex+2], c[0], c[cornerindex+1], c[cornerindex+2], -1);
                }
        }
 }
 
+void R_DecalSystem_SplatEntities(const vec3_t worldorigin, const vec3_t worldnormal, float r, float g, float b, float a, float s1, float t1, float s2, float t2, float worldsize)
+{
+       int renderentityindex;
+       float worldmins[3];
+       float worldmaxs[3];
+       entity_render_t *ent;
+
+       worldmins[0] = worldorigin[0] - worldsize;
+       worldmins[1] = worldorigin[1] - worldsize;
+       worldmins[2] = worldorigin[2] - worldsize;
+       worldmaxs[0] = worldorigin[0] + worldsize;
+       worldmaxs[1] = worldorigin[1] + worldsize;
+       worldmaxs[2] = worldorigin[2] + worldsize;
+
+       R_DecalSystem_SplatEntity(r_refdef.scene.worldentity, worldorigin, worldnormal, r, g, b, a, s1, t1, s2, t2, worldsize);
+
+       for (renderentityindex = 0;renderentityindex < r_refdef.scene.numentities;renderentityindex++)
+       {
+               ent = r_refdef.scene.entities[renderentityindex];
+               if (!BoxesOverlap(ent->mins, ent->maxs, worldmins, worldmaxs))
+                       continue;
+
+               R_DecalSystem_SplatEntity(ent, worldorigin, worldnormal, r, g, b, a, s1, t1, s2, t2, worldsize);
+       }
+}
+
 extern skinframe_t *decalskinframe;
-void RSurf_DrawTriDecals(void)
+static void R_DrawModelDecals_Entity(entity_render_t *ent)
 {
        int i;
-       decalsystem_t *decalsystem = &rsurface.entity->decalsystem;
-       int numdecals = decalsystem->numdecals;
-       tridecal_t *decal = decalsystem->decals;
-       float frametime = cl.time - decalsystem->lastupdatetime;
-       float decalfade;
-       float alphascale;
-       float ca;
+       decalsystem_t *decalsystem = &ent->decalsystem;
+       int numdecals;
+       tridecal_t *decal;
+       float frametime;
+       float fadedelay;
+       float faderate;
+       float alpha;
        float *v3f;
        float *c4f;
        const int *e;
 
-       decalsystem->lastupdatetime = cl.time;
-
        if (!decalsystem->numdecals)
                return;
 
-       decalfade = 1.0f / max(0.001f, cl_decals_fadetime.value);
-       alphascale = (1.0f / 255.0f);
+       if (r_showsurfaces.integer)
+               return;
 
-       if (rsurface.ent_color[3] < 1 || (rsurface.ent_flags & RENDER_ADDITIVE))
+       if (ent->model != decalsystem->model || ent->alpha < 1 || (ent->flags & RENDER_ADDITIVE))
        {
-               Mem_Free(decalsystem->decals);
-               memset(decalsystem, 0, sizeof(*decalsystem));
+               R_DecalSystem_Reset(decalsystem);
                return;
        }
 
-       if (decalfade < 0)
-               decalfade = 0;
+       // if the model is static it doesn't matter what value we give for
+       // wantnormals and wanttangents, so this logic uses only rules applicable
+       // to a model, knowing that they are meaningless otherwise
+       if (ent == r_refdef.scene.worldentity)
+               RSurf_ActiveWorldEntity();
+       else
+               RSurf_ActiveModelEntity(ent, false, false);
+
+       if (decalsystem->lastupdatetime)
+               frametime = cl.time - decalsystem->lastupdatetime;
+       else
+               frametime = 0;
+       decalsystem->lastupdatetime = cl.time;
+       decal = decalsystem->decals;
+       numdecals = decalsystem->numdecals;
+
+       fadedelay = cl_decals_time.value;
+       faderate = 1.0f / max(0.001f, cl_decals_fadetime.value);
 
        for (i = 0, decal = decalsystem->decals;i < numdecals;i++, decal++)
        {
-               if (!decal->alpha)
+               if (!decal->colors[0][3])
                        continue;
 
-               decal->fade -= frametime;
-               if (decal->fade <= 0)
+               decal->lived += frametime;
+               if (decal->lived >= fadedelay)
                {
-                       decal->alpha -= decalfade;
-                       if (decal->alpha <= 0)
+                       alpha = 1 - faderate * (decal->lived - cl_decals_time.value);
+                       if (alpha <= 0)
                        {
                                // kill the decal by zeroing vertex data
                                memset(decalsystem->vertex3f + 9*i, 0, sizeof(float[3][3]));
@@ -8348,44 +8522,43 @@ void RSurf_DrawTriDecals(void)
                                        decalsystem->freedecal = i;
                                continue;
                        }
-               }
 
-               // update color values for fading decals
-               ca = decal->alpha * alphascale;
-               c4f = decalsystem->color4f + 12*i;
-               c4f[ 0] = decal->colors[0][0] * ca;
-               c4f[ 1] = decal->colors[0][1] * ca;
-               c4f[ 2] = decal->colors[0][2] * ca;
-               c4f[ 3] = 1;
-               c4f[ 4] = decal->colors[1][0] * ca;
-               c4f[ 5] = decal->colors[1][1] * ca;
-               c4f[ 6] = decal->colors[1][2] * ca;
-               c4f[ 7] = 1;
-               c4f[ 8] = decal->colors[2][0] * ca;
-               c4f[ 9] = decal->colors[2][1] * ca;
-               c4f[10] = decal->colors[2][2] * ca;
-               c4f[11] = 1;
+                       // update color values for fading decals
+                       alpha *= (1.0f/255.0f);
+                       c4f = decalsystem->color4f + 12*i;
+                       c4f[ 0] = decal->colors[0][0] * alpha;
+                       c4f[ 1] = decal->colors[0][1] * alpha;
+                       c4f[ 2] = decal->colors[0][2] * alpha;
+                       c4f[ 3] = 1;
+                       c4f[ 4] = decal->colors[1][0] * alpha;
+                       c4f[ 5] = decal->colors[1][1] * alpha;
+                       c4f[ 6] = decal->colors[1][2] * alpha;
+                       c4f[ 7] = 1;
+                       c4f[ 8] = decal->colors[2][0] * alpha;
+                       c4f[ 9] = decal->colors[2][1] * alpha;
+                       c4f[10] = decal->colors[2][2] * alpha;
+                       c4f[11] = 1;
+               }
 
                // update vertex positions for animated models
                if (decal->triangleindex >= 0 && decal->triangleindex < rsurface.modelnum_triangles)
                {
                        e = rsurface.modelelement3i + 3*decal->triangleindex;
-                       v3f = decalsystem->vertex3f + i*i;
+                       v3f = decalsystem->vertex3f + 9*i;
                        VectorCopy(rsurface.vertex3f + 3*e[0], v3f);
                        VectorCopy(rsurface.vertex3f + 3*e[1], v3f + 3);
                        VectorCopy(rsurface.vertex3f + 3*e[2], v3f + 6);
                }
-
-               r_refdef.stats.decals++;
        }
 
        // reduce numdecals if possible
-       while (numdecals > 0 && !decalsystem->decals[numdecals - 1].alpha)
+       while (numdecals > 0 && !decalsystem->decals[numdecals - 1].colors[0][3])
                numdecals--;
        decalsystem->numdecals = numdecals;
 
        if (numdecals > 0)
        {
+               r_refdef.stats.decals += numdecals;
                // now render the decals all at once
                // (this assumes they all use one particle font texture!)
                RSurf_ActiveCustomEntity(&rsurface.matrix, &rsurface.inversematrix, rsurface.ent_flags, rsurface.ent_shadertime, 1, 1, 1, 1, numdecals*3, decalsystem->vertex3f, decalsystem->texcoord2f, NULL, NULL, NULL, decalsystem->color4f, numdecals, decalsystem->element3i, decalsystem->element3s, false, false);
@@ -8396,16 +8569,18 @@ void RSurf_DrawTriDecals(void)
                R_SetupGenericShader(true);
                GL_DepthMask(false);
                GL_DepthRange(0, 1);
-               GL_PolygonOffset(0, 0);
+               GL_PolygonOffset(rsurface.basepolygonfactor + r_polygonoffset_decals_factor.value, rsurface.basepolygonoffset + r_polygonoffset_decals_offset.value);
                GL_DepthTest(true);
                GL_CullFace(GL_NONE);
                GL_BlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_COLOR);
                R_Mesh_TexBind(0, R_GetTexture(decalskinframe->base));
+               //R_Mesh_TexBind(0, R_GetTexture(r_texture_white));
                GL_LockArrays(0, numdecals * 3);
                R_Mesh_Draw(0, numdecals * 3, 0, numdecals, decalsystem->element3i, decalsystem->element3s, 0, 0);
                GL_LockArrays(0, 0);
        }
-       else
+
+       if (numdecals <= 0)
        {
                // if there are no decals left, reset decalsystem
                R_DecalSystem_Reset(decalsystem);
@@ -8643,9 +8818,6 @@ void R_DrawWorldSurfaces(qboolean skysurfaces, qboolean writedepth, qboolean dep
                        r_refdef.stats.world_triangles += r_surfacelist[j]->num_triangles;
        }
 
-       // draw decals
-       RSurf_DrawTriDecals();
-
        rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
 }
 
@@ -8737,9 +8909,6 @@ void R_DrawModelSurfaces(entity_render_t *ent, qboolean skysurfaces, qboolean wr
                        r_refdef.stats.entities_triangles += r_surfacelist[j]->num_triangles;
        }
 
-       // draw decals
-       RSurf_DrawTriDecals();
-
        rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
 }