cvar_t r_bloom_blur = {CVAR_SAVE, "r_bloom_blur", "8"};
cvar_t r_bloom_resolution = {CVAR_SAVE, "r_bloom_resolution", "320"};
cvar_t r_bloom_power = {CVAR_SAVE, "r_bloom_power", "4"};
+
+cvar_t developer_texturelogging = {0, "developer_texturelogging", "1"};
+
rtexturepool_t *r_main_texturepool;
rtexture_t *r_bloom_texture_screen;
rtexture_t *r_bloom_texture_bloom;
+rtexture_t *r_texture_blanknormalmap;
+rtexture_t *r_texture_white;
+rtexture_t *r_texture_black;
+rtexture_t *r_texture_notexture;
+rtexture_t *r_texture_whitecube;
+rtexture_t *r_texture_normalizationcube;
void R_ModulateColors(float *in, float *out, int verts, float r, float g, float b)
{
void gl_main_start(void)
{
+ int x, y, side;
+ vec3_t v;
+ vec_t s, t, intensity;
+ qbyte pix[16][16][4];
+#define NORMSIZE 64
+ qbyte data[6*NORMSIZE*NORMSIZE*4];
r_main_texturepool = R_AllocTexturePool();
r_bloom_texture_screen = NULL;
r_bloom_texture_bloom = NULL;
+ data[0] = 128; // normal X
+ data[1] = 128; // normal Y
+ data[2] = 255; // normal Z
+ data[3] = 128; // height
+ r_texture_blanknormalmap = R_LoadTexture2D(r_main_texturepool, "blankbump", 1, 1, data, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
+ data[0] = 255;
+ data[1] = 255;
+ data[2] = 255;
+ data[3] = 255;
+ r_texture_white = R_LoadTexture2D(r_main_texturepool, "blankwhite", 1, 1, data, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
+ data[0] = 0;
+ data[1] = 0;
+ data[2] = 0;
+ data[3] = 255;
+ r_texture_black = R_LoadTexture2D(r_main_texturepool, "blankblack", 1, 1, data, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
+ // this makes a light grey/dark grey checkerboard texture
+ for (y = 0;y < 16;y++)
+ {
+ for (x = 0;x < 16;x++)
+ {
+ if ((y < 8) ^ (x < 8))
+ {
+ pix[y][x][0] = 128;
+ pix[y][x][1] = 128;
+ pix[y][x][2] = 128;
+ pix[y][x][3] = 255;
+ }
+ else
+ {
+ pix[y][x][0] = 64;
+ pix[y][x][1] = 64;
+ pix[y][x][2] = 64;
+ pix[y][x][3] = 255;
+ }
+ }
+ }
+ r_texture_notexture = R_LoadTexture2D(r_main_texturepool, "notexture", 16, 16, &pix[0][0][0], TEXTYPE_RGBA, TEXF_MIPMAP, NULL);
+ if (gl_texturecubemap)
+ {
+ data[ 0] = 255;data[ 1] = 255;data[ 2] = 255;data[ 3] = 255;
+ data[ 4] = 255;data[ 5] = 255;data[ 6] = 255;data[ 7] = 255;
+ data[ 8] = 255;data[ 9] = 255;data[10] = 255;data[11] = 255;
+ data[12] = 255;data[13] = 255;data[14] = 255;data[15] = 255;
+ data[16] = 255;data[17] = 255;data[18] = 255;data[19] = 255;
+ data[20] = 255;data[21] = 255;data[22] = 255;data[23] = 255;
+ r_texture_whitecube = R_LoadTextureCubeMap(r_main_texturepool, "whitecube", 1, data, TEXTYPE_RGBA, TEXF_PRECACHE | TEXF_CLAMP, NULL);
+ for (side = 0;side < 6;side++)
+ {
+ for (y = 0;y < NORMSIZE;y++)
+ {
+ for (x = 0;x < NORMSIZE;x++)
+ {
+ s = (x + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
+ t = (y + 0.5f) * (2.0f / NORMSIZE) - 1.0f;
+ switch(side)
+ {
+ case 0:
+ v[0] = 1;
+ v[1] = -t;
+ v[2] = -s;
+ break;
+ case 1:
+ v[0] = -1;
+ v[1] = -t;
+ v[2] = s;
+ break;
+ case 2:
+ v[0] = s;
+ v[1] = 1;
+ v[2] = t;
+ break;
+ case 3:
+ v[0] = s;
+ v[1] = -1;
+ v[2] = -t;
+ break;
+ case 4:
+ v[0] = s;
+ v[1] = -t;
+ v[2] = 1;
+ break;
+ case 5:
+ v[0] = -s;
+ v[1] = -t;
+ v[2] = -1;
+ break;
+ }
+ intensity = 127.0f / sqrt(DotProduct(v, v));
+ data[((side*NORMSIZE+y)*NORMSIZE+x)*4+0] = 128.0f + intensity * v[0];
+ data[((side*NORMSIZE+y)*NORMSIZE+x)*4+1] = 128.0f + intensity * v[1];
+ data[((side*NORMSIZE+y)*NORMSIZE+x)*4+2] = 128.0f + intensity * v[2];
+ data[((side*NORMSIZE+y)*NORMSIZE+x)*4+3] = 255;
+ }
+ }
+ }
+ r_texture_normalizationcube = R_LoadTextureCubeMap(r_main_texturepool, "normalcube", NORMSIZE, data, TEXTYPE_RGBA, TEXF_PRECACHE | TEXF_CLAMP, NULL);
+ }
}
void gl_main_shutdown(void)
R_FreeTexturePool(&r_main_texturepool);
r_bloom_texture_screen = NULL;
r_bloom_texture_bloom = NULL;
+ r_texture_blanknormalmap = NULL;
+ r_texture_white = NULL;
+ r_texture_black = NULL;
+ r_texture_whitecube = NULL;
+ r_texture_normalizationcube = NULL;
}
extern void CL_ParseEntityLump(char *entitystring);
Cvar_RegisterVariable(&r_bloom_blur);
Cvar_RegisterVariable(&r_bloom_resolution);
Cvar_RegisterVariable(&r_bloom_power);
+ Cvar_RegisterVariable(&developer_texturelogging);
if (gamemode == GAME_NEHAHRA || gamemode == GAME_NEXUIZ || gamemode == GAME_TENEBRAE)
Cvar_SetValue("r_fullbrights", 0);
R_RegisterModule("GL_Main", gl_main_start, gl_main_shutdown, gl_main_newmap);
return false;
}
-int R_BoxVisible(const vec3_t mins, const vec3_t maxs)
-{
- int side, nodestackindex = 0;
- mnode_t *node, *nodestack[1024];
- if (R_CullBox(mins, maxs))
- return false;
- if (!r_refdef.worldmodel || !r_refdef.worldmodel->brush.data_nodes)
- return true;
- node = r_refdef.worldmodel->brush.data_nodes;
- for (;;)
- {
- if (node->plane)
- {
- // node - recurse down the BSP tree
- side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
- if (side < 2)
- {
- // box is on one side of plane, take that path
- node = node->children[side];
- }
- else
- {
- // box crosses plane, take one path and remember the other
- if (nodestackindex < 1024)
- nodestack[nodestackindex++] = node->children[0];
- node = node->children[1];
- }
- }
- else
- {
- // leaf - check leaf visibility
- if (r_worldleafvisible[(mleaf_t *)node - r_refdef.worldmodel->brush.data_leafs])
- {
- // it is visible, return immediately with the news
- return true;
- }
- else
- {
- // nothing to see here, try another path we didn't take earlier
- if (nodestackindex == 0)
- break;
- node = nodestack[--nodestackindex];
- }
- }
- }
- // it is not visible
- return false;
-}
-
-
//==================================================================================
static void R_MarkEntities (void)
if (!r_drawentities.integer)
return;
+ r_refdef.worldentity->visframe = r_framecount;
renderimask = envmap ? (RENDER_EXTERIORMODEL | RENDER_VIEWMODEL) : (chase_active.integer ? 0 : RENDER_EXTERIORMODEL);
- for (i = 0;i < r_refdef.numentities;i++)
+ if (r_refdef.worldmodel && r_refdef.worldmodel->brush.BoxTouchingVisibleLeafs)
{
- ent = r_refdef.entities[i];
- Mod_CheckLoaded(ent->model);
- // some of the renderer still relies on origin...
- Matrix4x4_OriginFromMatrix(&ent->matrix, ent->origin);
- // some of the renderer still relies on scale...
- ent->scale = Matrix4x4_ScaleFromMatrix(&ent->matrix);
- if (!(ent->flags & renderimask) && ((ent->effects & EF_NODEPTHTEST) ? R_CullBox(ent->mins, ent->maxs) : R_BoxVisible(ent->mins, ent->maxs)))
+ // worldmodel can check visibility
+ for (i = 0;i < r_refdef.numentities;i++)
{
- R_UpdateEntLights(ent);
- ent->visframe = r_framecount;
+ ent = r_refdef.entities[i];
+ Mod_CheckLoaded(ent->model);
+ // some of the renderer still relies on origin...
+ Matrix4x4_OriginFromMatrix(&ent->matrix, ent->origin);
+ // some of the renderer still relies on scale...
+ ent->scale = Matrix4x4_ScaleFromMatrix(&ent->matrix);
+ if (!(ent->flags & renderimask) && !R_CullBox(ent->mins, ent->maxs) && ((ent->effects & EF_NODEPTHTEST) || r_refdef.worldmodel->brush.BoxTouchingVisibleLeafs(r_refdef.worldmodel, r_worldleafvisible, ent->mins, ent->maxs)))
+ {
+ R_UpdateEntLights(ent);
+ ent->visframe = r_framecount;
+ }
+ }
+ }
+ else
+ {
+ // no worldmodel or it can't check visibility
+ for (i = 0;i < r_refdef.numentities;i++)
+ {
+ ent = r_refdef.entities[i];
+ Mod_CheckLoaded(ent->model);
+ // some of the renderer still relies on origin...
+ Matrix4x4_OriginFromMatrix(&ent->matrix, ent->origin);
+ // some of the renderer still relies on scale...
+ ent->scale = Matrix4x4_ScaleFromMatrix(&ent->matrix);
+ if (!(ent->flags & renderimask) && !R_CullBox(ent->mins, ent->maxs) && (ent->effects & EF_NODEPTHTEST))
+ {
+ R_UpdateEntLights(ent);
+ ent->visframe = r_framecount;
+ }
}
}
}
GL_DepthMask(true);
GL_DepthTest(false);
R_Mesh_Matrix(&r_identitymatrix);
+ // vertex coordinates for a quad that covers the screen exactly
varray_vertex3f[0] = 0;varray_vertex3f[1] = 0;varray_vertex3f[2] = 0;
varray_vertex3f[3] = 1;varray_vertex3f[4] = 0;varray_vertex3f[5] = 0;
varray_vertex3f[6] = 1;varray_vertex3f[7] = 1;varray_vertex3f[8] = 0;
int screenwidth, screenheight, bloomwidth, bloomheight, x, dobloomblend, range;
float xoffset, yoffset, r;
c_bloom++;
+ // set the (poorly named) screenwidth and screenheight variables to
+ // a power of 2 at least as large as the screen, these will define the
+ // size of the texture to allocate
for (screenwidth = 1;screenwidth < vid.realwidth;screenwidth *= 2);
for (screenheight = 1;screenheight < vid.realheight;screenheight *= 2);
+ // allocate textures as needed
+ if (!r_bloom_texture_screen)
+ r_bloom_texture_screen = R_LoadTexture2D(r_main_texturepool, "screen", screenwidth, screenheight, NULL, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
+ if (!r_bloom_texture_bloom)
+ r_bloom_texture_bloom = R_LoadTexture2D(r_main_texturepool, "bloom", screenwidth, screenheight, NULL, TEXTYPE_RGBA, TEXF_FORCELINEAR | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
+ // set bloomwidth and bloomheight to the bloom resolution that will be
+ // used (often less than the screen resolution for faster rendering)
bloomwidth = min(r_view_width, r_bloom_resolution.integer);
bloomheight = min(r_view_height, bloomwidth * r_view_height / r_view_width);
+ // set up a texcoord array for the full resolution screen image
+ // (we have to keep this around to copy back during final render)
varray_texcoord2f[0][0] = 0;
varray_texcoord2f[0][1] = (float)r_view_height / (float)screenheight;
varray_texcoord2f[0][2] = (float)r_view_width / (float)screenwidth;
varray_texcoord2f[0][5] = 0;
varray_texcoord2f[0][6] = 0;
varray_texcoord2f[0][7] = 0;
+ // set up a texcoord array for the reduced resolution bloom image
+ // (which will be additive blended over the screen image)
varray_texcoord2f[1][0] = 0;
varray_texcoord2f[1][1] = (float)bloomheight / (float)screenheight;
varray_texcoord2f[1][2] = (float)bloomwidth / (float)screenwidth;
varray_texcoord2f[1][5] = 0;
varray_texcoord2f[1][6] = 0;
varray_texcoord2f[1][7] = 0;
- if (!r_bloom_texture_screen)
- r_bloom_texture_screen = R_LoadTexture2D(r_main_texturepool, "screen", screenwidth, screenheight, NULL, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
- if (!r_bloom_texture_bloom)
- r_bloom_texture_bloom = R_LoadTexture2D(r_main_texturepool, "bloom", screenwidth, screenheight, NULL, TEXTYPE_RGBA, TEXF_FORCELINEAR | TEXF_CLAMP | TEXF_ALWAYSPRECACHE, NULL);
memset(&m, 0, sizeof(m));
m.pointer_vertex = varray_vertex3f;
m.pointer_texcoord[0] = varray_texcoord2f[0];
m.tex[0] = R_GetTexture(r_bloom_texture_screen);
R_Mesh_State(&m);
- // copy view to a texture
+ // copy view into the full resolution screen image texture
GL_ActiveTexture(0);
qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view_x, vid.realheight - (r_view_y + r_view_height), r_view_width, r_view_height);
c_bloomcopies++;
c_bloomcopypixels += r_view_width * r_view_height;
// now scale it down to the bloom size and raise to a power of itself
- qglViewport(r_view_x, vid.realheight - (r_view_y + bloomheight), bloomwidth, bloomheight);
+ // to darken it (this leaves the really bright stuff bright, and
+ // everything else becomes very dark)
// TODO: optimize with multitexture or GLSL
+ qglViewport(r_view_x, vid.realheight - (r_view_y + bloomheight), bloomwidth, bloomheight);
GL_BlendFunc(GL_ONE, GL_ZERO);
GL_Color(1, 1, 1, 1);
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
c_bloomdraws++;
c_bloomdrawpixels += bloomwidth * bloomheight;
+ // render multiple times with a multiply blendfunc to raise to a power
GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
for (x = 1;x < r_bloom_power.integer;x++)
{
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
c_bloomdraws++;
c_bloomdrawpixels += bloomwidth * bloomheight;
}
- // copy the bloom view to a texture
+ // we now have a darkened bloom image in the framebuffer, copy it into
+ // the bloom image texture for more processing
memset(&m, 0, sizeof(m));
m.pointer_vertex = varray_vertex3f;
m.tex[0] = R_GetTexture(r_bloom_texture_bloom);
qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view_x, vid.realheight - (r_view_y + bloomheight), bloomwidth, bloomheight);
c_bloomcopies++;
c_bloomcopypixels += bloomwidth * bloomheight;
- // blend on at multiple offsets vertically
+ // blend on at multiple vertical offsets to achieve a vertical blur
// TODO: do offset blends using GLSL
range = r_bloom_blur.integer * bloomwidth / 320;
GL_BlendFunc(GL_ONE, GL_ZERO);
{
xoffset = 0 / (float)bloomwidth * (float)bloomwidth / (float)screenwidth;
yoffset = x / (float)bloomheight * (float)bloomheight / (float)screenheight;
+ // compute a texcoord array with the specified x and y offset
varray_texcoord2f[2][0] = xoffset+0;
varray_texcoord2f[2][1] = yoffset+(float)bloomheight / (float)screenheight;
varray_texcoord2f[2][2] = xoffset+(float)bloomwidth / (float)screenwidth;
varray_texcoord2f[2][5] = yoffset+0;
varray_texcoord2f[2][6] = xoffset+0;
varray_texcoord2f[2][7] = yoffset+0;
- r = r_bloom_intensity.value/(range*2+1)*(1 - fabs(x*x)/(float)(range*range));
+ // this r value looks like a 'dot' particle, fading sharply to
+ // black at the edges
+ // (probably not realistic but looks good enough)
+ r = r_bloom_intensity.value/(range*2+1)*(1 - x*x/(float)(range*range));
if (r < 0.01f)
continue;
GL_Color(r, r, r, 1);
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
c_bloomdraws++;
c_bloomdrawpixels += bloomwidth * bloomheight;
GL_BlendFunc(GL_ONE, GL_ONE);
}
- // copy the blurred bloom view to a texture
+ // copy the vertically blurred bloom view to a texture
GL_ActiveTexture(0);
qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r_view_x, vid.realheight - (r_view_y + bloomheight), bloomwidth, bloomheight);
c_bloomcopies++;
c_bloomcopypixels += bloomwidth * bloomheight;
- // blend on at multiple offsets horizontally
+ // blend the vertically blurred image at multiple offsets horizontally
+ // to finish the blur effect
// TODO: do offset blends using GLSL
range = r_bloom_blur.integer * bloomwidth / 320;
GL_BlendFunc(GL_ONE, GL_ZERO);
{
xoffset = x / (float)bloomwidth * (float)bloomwidth / (float)screenwidth;
yoffset = 0 / (float)bloomheight * (float)bloomheight / (float)screenheight;
+ // compute a texcoord array with the specified x and y offset
varray_texcoord2f[2][0] = xoffset+0;
varray_texcoord2f[2][1] = yoffset+(float)bloomheight / (float)screenheight;
varray_texcoord2f[2][2] = xoffset+(float)bloomwidth / (float)screenwidth;
varray_texcoord2f[2][5] = yoffset+0;
varray_texcoord2f[2][6] = xoffset+0;
varray_texcoord2f[2][7] = yoffset+0;
- r = r_bloom_intensity.value/(range*2+1)*(1 - fabs(x*x)/(float)(range*range));
+ // this r value looks like a 'dot' particle, fading sharply to
+ // black at the edges
+ // (probably not realistic but looks good enough)
+ r = r_bloom_intensity.value/(range*2+1)*(1 - x*x/(float)(range*range));
if (r < 0.01f)
continue;
GL_Color(r, r, r, 1);
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
c_bloomdraws++;
c_bloomdrawpixels += bloomwidth * bloomheight;
GL_BlendFunc(GL_ONE, GL_ONE);
c_bloomcopypixels += bloomwidth * bloomheight;
// go back to full view area
qglViewport(r_view_x, vid.realheight - (r_view_y + r_view_height), r_view_width, r_view_height);
- // put the original view back in place
+ // put the original screen image back in place and blend the bloom
+ // texture on it
memset(&m, 0, sizeof(m));
m.pointer_vertex = varray_vertex3f;
m.tex[0] = R_GetTexture(r_bloom_texture_screen);
R_Mesh_State(&m);
GL_BlendFunc(GL_ONE, GL_ZERO);
GL_Color(1,1,1,1);
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
c_bloomdraws++;
c_bloomdrawpixels += r_view_width * r_view_height;
// now blend on the bloom texture if multipass
R_Mesh_State(&m);
GL_BlendFunc(GL_ONE, GL_ONE);
GL_Color(1,1,1,1);
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
c_bloomdraws++;
c_bloomdrawpixels += r_view_width * r_view_height;
}
R_Mesh_State(&m);
GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_Color(r_refdef.viewblend[0], r_refdef.viewblend[1], r_refdef.viewblend[2], r_refdef.viewblend[3]);
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
}
}
S_ExtraUpdate ();
GL_ShowTrisColor(0, 0, 0.033, 1);
- R_ShadowVolumeLighting(false);
+ R_ShadowVolumeLighting(false, false);
R_TimeReport("rtlights");
// don't let sound skip if going slow
R_MeshQueue_Render();
R_MeshQueue_EndScene();
- if (r_shadow_visiblevolumes.integer && !r_showtrispass)
+ if ((r_shadow_visiblelighting.integer || r_shadow_visiblevolumes.integer) && !r_showtrispass)
{
- R_ShadowVolumeLighting(true);
+ R_ShadowVolumeLighting(r_shadow_visiblelighting.integer, r_shadow_visiblevolumes.integer);
R_TimeReport("shadowvolume");
}
else
m.pointer_color = nomodelcolor4f;
R_Mesh_State(&m);
- R_Mesh_Draw(6, 8, nomodelelements);
+ R_Mesh_Draw(0, 6, 8, nomodelelements);
}
void R_DrawNoModel(entity_render_t *ent)
m.pointer_vertex = varray_vertex3f;
R_Mesh_State(&m);
GL_Color(cr, cg, cb, ca);
- R_Mesh_Draw(4, 2, polygonelements);
+ R_Mesh_Draw(0, 4, 2, polygonelements);
}
projects / xonotic / darkplaces.git / blobdiff