qboolean r_shadow_usingshadowmaprect;
qboolean r_shadow_usingshadowmap2d;
qboolean r_shadow_usingshadowmapcube;
-float r_shadow_shadowmap_texturescale[4];
+float r_shadow_shadowmap_texturescale[2];
float r_shadow_shadowmap_parameters[4];
int r_shadow_drawbuffer;
int r_shadow_readbuffer;
GLuint r_shadow_fbocubeside[R_SHADOW_SHADOWMAP_NUMCUBEMAPS][6];
GLuint r_shadow_fbo2d;
int r_shadow_shadowmode;
+int r_shadow_shadowmapfilterquality;
+int r_shadow_shadowmaptexturetype;
+int r_shadow_shadowmapprecision;
int r_shadow_shadowmapmaxsize;
-int r_shadow_shadowmapfilter;
+qboolean r_shadow_shadowmapvsdct;
+qboolean r_shadow_shadowmapsampler;
+int r_shadow_shadowmappcf;
int r_shadow_shadowmapborder;
int r_shadow_lightscissor[4];
rtexture_t *r_shadow_shadowmaprectangletexture;
rtexture_t *r_shadow_shadowmap2dtexture;
rtexture_t *r_shadow_shadowmapcubetexture[R_SHADOW_SHADOWMAP_NUMCUBEMAPS];
-rtexture_t *r_shadow_shadowmapcubeprojectiontexture[R_SHADOW_SHADOWMAP_NUMCUBEMAPS];
+rtexture_t *r_shadow_shadowmapvsdcttexture;
int r_shadow_shadowmapsize; // changes for each light based on distance
int r_shadow_shadowmaplod; // changes for each light based on distance
cvar_t r_shadow_realtime_world_compileportalculling = {0, "r_shadow_realtime_world_compileportalculling", "1", "enables portal-based culling optimization during compilation"};
cvar_t r_shadow_scissor = {0, "r_shadow_scissor", "1", "use scissor optimization of light rendering (restricts rendering to the portion of the screen affected by the light)"};
cvar_t r_shadow_shadowmapping = {CVAR_SAVE, "r_shadow_shadowmapping", "0", "enables use of shadowmapping (depth texture sampling) instead of stencil shadow volumes, requires gl_fbo 1"};
-cvar_t r_shadow_shadowmapping_filterquality = {CVAR_SAVE, "r_shadow_shadowmapping_filterquality", "0", "shadowmap filter modes: 0 = no filtering, 1 = bilinear, 2 = bilinear small blur (fast), 3 = bilinear large blur (slow)"};
+cvar_t r_shadow_shadowmapping_texturetype = {CVAR_SAVE, "r_shadow_shadowmapping_texturetype", "0", "shadowmap texture types: 0 = auto-select, 1 = 2D, 2 = rectangle, 3 = cubemap"};
+cvar_t r_shadow_shadowmapping_filterquality = {CVAR_SAVE, "r_shadow_shadowmapping_filterquality", "-1", "shadowmap filter modes: -1 = auto-select, 0 = no filtering, 1 = bilinear, 2 = bilinear 2x2 blur (fast), 3 = 3x3 blur (moderate), 4 = 4x4 blur (slow)"};
+cvar_t r_shadow_shadowmapping_precision = {CVAR_SAVE, "r_shadow_shadowmapping_precision", "24", "requested minimum shadowmap texture precision"};
+cvar_t r_shadow_shadowmapping_vsdct = {CVAR_SAVE, "r_shadow_shadowmapping_vsdct", "1", "enables use of virtual shadow depth cube texture"};
cvar_t r_shadow_shadowmapping_minsize = {CVAR_SAVE, "r_shadow_shadowmapping_minsize", "32", "shadowmap size limit"};
cvar_t r_shadow_shadowmapping_maxsize = {CVAR_SAVE, "r_shadow_shadowmapping_maxsize", "512", "shadowmap size limit"};
cvar_t r_shadow_shadowmapping_lod_bias = {CVAR_SAVE, "r_shadow_shadowmapping_lod_bias", "16", "shadowmap size bias"};
cachepic_t *r_editlights_sprcubemapnoshadowlight;
cachepic_t *r_editlights_sprselection;
-void R_Shadow_FreeShadowMaps(void)
+void R_Shadow_SetShadowMode(void)
{
- int i;
-
r_shadow_shadowmapmaxsize = bound(1, r_shadow_shadowmapping_maxsize.integer, 2048);
- r_shadow_shadowmode = r_shadow_shadowmapping.integer;
- r_shadow_shadowmapfilter = r_shadow_shadowmapping_filterquality.integer;
+ r_shadow_shadowmapvsdct = r_shadow_shadowmapping_vsdct.integer != 0;
+ r_shadow_shadowmapfilterquality = r_shadow_shadowmapping_filterquality.integer;
+ r_shadow_shadowmaptexturetype = r_shadow_shadowmapping_texturetype.integer;
+ r_shadow_shadowmapprecision = r_shadow_shadowmapping_precision.integer;
r_shadow_shadowmapborder = bound(0, r_shadow_shadowmapping_bordersize.integer, 16);
r_shadow_shadowmaplod = -1;
+ r_shadow_shadowmapsampler = false;
+ r_shadow_shadowmappcf = 0;
+ r_shadow_shadowmode = 0;
+ if(r_shadow_shadowmapping.integer)
+ {
+ if(r_shadow_shadowmapfilterquality < 0)
+ {
+ if(strstr(gl_vendor, "NVIDIA"))
+ {
+ r_shadow_shadowmapsampler = gl_support_arb_shadow;
+ r_shadow_shadowmappcf = 1;
+ }
+ else if(gl_support_amd_texture_texture4 || gl_support_arb_texture_gather)
+ r_shadow_shadowmappcf = 1;
+ else if(strstr(gl_vendor, "ATI"))
+ r_shadow_shadowmappcf = 1;
+ else
+ r_shadow_shadowmapsampler = gl_support_arb_shadow;
+ }
+ else
+ {
+ switch (r_shadow_shadowmapfilterquality)
+ {
+ case 1:
+ r_shadow_shadowmapsampler = gl_support_arb_shadow;
+ break;
+ case 2:
+ r_shadow_shadowmapsampler = gl_support_arb_shadow;
+ r_shadow_shadowmappcf = 1;
+ break;
+ case 3:
+ r_shadow_shadowmappcf = 1;
+ break;
+ case 4:
+ r_shadow_shadowmappcf = 2;
+ break;
+ }
+ }
+ r_shadow_shadowmode = r_shadow_shadowmaptexturetype;
+ if(r_shadow_shadowmode <= 0)
+ {
+ if((gl_support_amd_texture_texture4 || gl_support_arb_texture_gather) && r_shadow_shadowmappcf && !r_shadow_shadowmapsampler)
+ r_shadow_shadowmode = 1;
+ else if(gl_texturerectangle)
+ r_shadow_shadowmode = 2;
+ else
+ r_shadow_shadowmode = 1;
+ }
+ }
+}
+
+void R_Shadow_FreeShadowMaps(void)
+{
+ int i;
+
+ R_Shadow_SetShadowMode();
- CHECKGLERROR
if (r_shadow_fborectangle)
qglDeleteFramebuffersEXT(1, &r_shadow_fborectangle);
r_shadow_fborectangle = 0;
R_FreeTexture(r_shadow_shadowmapcubetexture[i]);
memset(r_shadow_shadowmapcubetexture, 0, sizeof(r_shadow_shadowmapcubetexture));
- for (i = 0;i < R_SHADOW_SHADOWMAP_NUMCUBEMAPS;i++)
- if (r_shadow_shadowmapcubeprojectiontexture[i])
- R_FreeTexture(r_shadow_shadowmapcubeprojectiontexture[i]);
- memset(r_shadow_shadowmapcubeprojectiontexture, 0, sizeof(r_shadow_shadowmapcubeprojectiontexture));
+ if (r_shadow_shadowmapvsdcttexture)
+ R_FreeTexture(r_shadow_shadowmapvsdcttexture);
+ r_shadow_shadowmapvsdcttexture = NULL;
CHECKGLERROR
}
r_shadow_shadowmaprectangletexture = NULL;
r_shadow_shadowmap2dtexture = NULL;
memset(r_shadow_shadowmapcubetexture, 0, sizeof(r_shadow_shadowmapcubetexture));
- memset(r_shadow_shadowmapcubeprojectiontexture, 0, sizeof(r_shadow_shadowmapcubeprojectiontexture));
+ r_shadow_shadowmapvsdcttexture = NULL;
r_shadow_shadowmapmaxsize = 0;
r_shadow_shadowmapsize = 0;
r_shadow_shadowmaplod = 0;
- r_shadow_shadowmapfilter = 0;
+ r_shadow_shadowmapfilterquality = 0;
+ r_shadow_shadowmaptexturetype = 0;
+ r_shadow_shadowmapprecision = 0;
+ r_shadow_shadowmapvsdct = false;
+ r_shadow_shadowmapsampler = false;
+ r_shadow_shadowmappcf = 0;
r_shadow_fborectangle = 0;
r_shadow_fbo2d = 0;
memset(r_shadow_fbocubeside, 0, sizeof(r_shadow_fbocubeside));
Cvar_RegisterVariable(&r_shadow_realtime_world_compileportalculling);
Cvar_RegisterVariable(&r_shadow_scissor);
Cvar_RegisterVariable(&r_shadow_shadowmapping);
+ Cvar_RegisterVariable(&r_shadow_shadowmapping_vsdct);
+ Cvar_RegisterVariable(&r_shadow_shadowmapping_texturetype);
Cvar_RegisterVariable(&r_shadow_shadowmapping_filterquality);
+ Cvar_RegisterVariable(&r_shadow_shadowmapping_precision);
Cvar_RegisterVariable(&r_shadow_shadowmapping_maxsize);
Cvar_RegisterVariable(&r_shadow_shadowmapping_minsize);
Cvar_RegisterVariable(&r_shadow_shadowmapping_lod_bias);
}
}
+static void R_Shadow_MakeVSDCT(void)
+{
+ // maps to a 2x3 texture rectangle with normalized coordinates
+ // +-
+ // XX
+ // YY
+ // ZZ
+ // stores abs(dir.xy), offset.xy/2.5
+ unsigned char data[4*6] =
+ {
+ 255, 0, 0x33, 0x33, // +X: <1, 0>, <0.5, 0.5>
+ 255, 0, 0x99, 0x33, // -X: <1, 0>, <1.5, 0.5>
+ 0, 255, 0x33, 0x99, // +Y: <0, 1>, <0.5, 1.5>
+ 0, 255, 0x99, 0x99, // -Y: <0, 1>, <1.5, 1.5>
+ 0, 0, 0x33, 0xFF, // +Z: <0, 0>, <0.5, 2.5>
+ 0, 0, 0x99, 0xFF, // -Z: <0, 0>, <1.5, 2.5>
+ };
+ r_shadow_shadowmapvsdcttexture = R_LoadTextureCubeMap(r_shadow_texturepool, "shadowmapvsdct", 1, data, TEXTYPE_RGBA, TEXF_ALWAYSPRECACHE | TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALPHA, NULL);
+}
+
void R_Shadow_RenderMode_ShadowMap(int side, qboolean clear, int size)
{
int i;
nearclip = r_shadow_shadowmapping_nearclip.value / rsurface.rtlight->radius;
farclip = 1.0f;
bias = r_shadow_shadowmapping_bias.value * nearclip * (1024.0f / size);// * rsurface.rtlight->radius;
- r_shadow_shadowmap_texturescale[2] = 0.5f + 0.5f * (farclip + nearclip) / (farclip - nearclip);
- r_shadow_shadowmap_texturescale[3] = -nearclip * farclip / (farclip - nearclip) - 0.5f * bias;
- r_shadow_shadowmap_parameters[2] = r_shadow_shadowmap_texturescale[2];
- r_shadow_shadowmap_parameters[3] = r_shadow_shadowmap_texturescale[3];
+ r_shadow_shadowmap_parameters[2] = 0.5f + 0.5f * (farclip + nearclip) / (farclip - nearclip);
+ r_shadow_shadowmap_parameters[3] = -nearclip * farclip / (farclip - nearclip) - 0.5f * bias;
if (r_shadow_shadowmode == 1)
{
// complex unrolled cube approach (more flexible)
- if (!r_shadow_shadowmapcubeprojectiontexture[r_shadow_shadowmaplod])
- r_shadow_shadowmapcubeprojectiontexture[r_shadow_shadowmaplod] = R_LoadTextureCubeProjection(r_shadow_texturepool, "shadowmapcubeprojection", 2, 4, size, r_shadow_shadowmapborder);
+ if (r_shadow_shadowmapvsdct && !r_shadow_shadowmapvsdcttexture)
+ R_Shadow_MakeVSDCT();
if (!r_shadow_shadowmap2dtexture)
{
#if 1
- r_shadow_shadowmap2dtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "shadowmap", maxsize*2, maxsize*4, r_shadow_shadowmapfilter == 1 || r_shadow_shadowmapfilter == 2);
+ int w = maxsize*2, h = gl_support_arb_texture_non_power_of_two ? maxsize*3 : maxsize*4;
+ r_shadow_shadowmap2dtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "shadowmap", w, h, r_shadow_shadowmapprecision, r_shadow_shadowmapsampler);
qglGenFramebuffersEXT(1, &r_shadow_fbo2d);CHECKGLERROR
qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_fbo2d);CHECKGLERROR
qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, R_GetTexture(r_shadow_shadowmap2dtexture), 0);CHECKGLERROR
R_SetupShowDepthShader();
qglClearColor(1,1,1,1);CHECKGLERROR
}
- R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapping_bordersize.integer, nearclip, farclip, NULL);
+ R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapborder, nearclip, farclip, NULL);
r_shadow_shadowmap_texturescale[0] = 1.0f / R_TextureWidth(r_shadow_shadowmap2dtexture);
r_shadow_shadowmap_texturescale[1] = 1.0f / R_TextureHeight(r_shadow_shadowmap2dtexture);
- r_shadow_shadowmap_parameters[0] = (0.5f / 4) * (1.0f - r_shadow_shadowmapborder) / size;
- r_shadow_shadowmap_parameters[1] = 1.0f / (3 * 4);
+ r_shadow_shadowmap_parameters[0] = 0.5f * (size - r_shadow_shadowmapborder);
+ r_shadow_shadowmap_parameters[1] = r_shadow_shadowmapvsdct ? 2.5f*size : size;
r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D;
}
else if (r_shadow_shadowmode == 2)
{
// complex unrolled cube approach (more flexible)
- if (!r_shadow_shadowmapcubeprojectiontexture[r_shadow_shadowmaplod])
- r_shadow_shadowmapcubeprojectiontexture[r_shadow_shadowmaplod] = R_LoadTextureCubeProjection(r_shadow_texturepool, "shadowmapcubeprojection", 2, 3, size, r_shadow_shadowmapborder);
+ if (r_shadow_shadowmapvsdct && !r_shadow_shadowmapvsdcttexture)
+ R_Shadow_MakeVSDCT();
if (!r_shadow_shadowmaprectangletexture)
{
#if 1
- r_shadow_shadowmaprectangletexture = R_LoadTextureShadowMapRectangle(r_shadow_texturepool, "shadowmap", maxsize*2, maxsize*3, r_shadow_shadowmapfilter == 1 || r_shadow_shadowmapfilter == 2);
+ r_shadow_shadowmaprectangletexture = R_LoadTextureShadowMapRectangle(r_shadow_texturepool, "shadowmap", maxsize*2, maxsize*3, r_shadow_shadowmapprecision, r_shadow_shadowmapsampler);
qglGenFramebuffersEXT(1, &r_shadow_fborectangle);CHECKGLERROR
qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_fborectangle);CHECKGLERROR
qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_RECTANGLE_ARB, R_GetTexture(r_shadow_shadowmaprectangletexture), 0);CHECKGLERROR
qglClearColor(1,1,1,1);CHECKGLERROR
}
R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapborder, nearclip, farclip, NULL);
- r_shadow_shadowmap_texturescale[0] = 2*size;
- r_shadow_shadowmap_texturescale[1] = 3*size;
+ r_shadow_shadowmap_texturescale[0] = 1.0f;
+ r_shadow_shadowmap_texturescale[1] = 1.0f;
r_shadow_shadowmap_parameters[0] = 0.5f * (size - r_shadow_shadowmapborder);
- r_shadow_shadowmap_parameters[1] = size;
+ r_shadow_shadowmap_parameters[1] = r_shadow_shadowmapvsdct ? 2.5f*size : size;
r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE;
}
else if (r_shadow_shadowmode == 3)
if (!r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod])
{
#if 1
- r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod] = R_LoadTextureShadowMapCube(r_shadow_texturepool, "shadowmapcube", bound(1, maxsize >> r_shadow_shadowmaplod, 2048), r_shadow_shadowmapfilter == 1 || r_shadow_shadowmapfilter == 2);
+ r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod] = R_LoadTextureShadowMapCube(r_shadow_texturepool, "shadowmapcube", size, r_shadow_shadowmapprecision, r_shadow_shadowmapsampler);
qglGenFramebuffersEXT(6, r_shadow_fbocubeside[r_shadow_shadowmaplod]);CHECKGLERROR
for (i = 0;i < 6;i++)
{
R_Viewport_InitCubeSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, nearclip, farclip, NULL);
r_shadow_shadowmap_texturescale[0] = 1.0f / R_TextureWidth(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]);
r_shadow_shadowmap_texturescale[1] = 1.0f / R_TextureWidth(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]);
- r_shadow_shadowmap_parameters[0] = r_shadow_shadowmap_texturescale[0];
- r_shadow_shadowmap_parameters[1] = r_shadow_shadowmap_texturescale[1];
+ r_shadow_shadowmap_parameters[0] = 1.0f;
+ r_shadow_shadowmap_parameters[1] = 1.0f;
r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE;
}
CHECKGLERROR
R_SetViewport(&viewport);
GL_PolygonOffset(0, 0);
- GL_CullFace(GL_NONE); // quake is backwards
+#if 0
+ if(r_shadow_shadowmode >= 1 && r_shadow_shadowmode <= 2)
+ {
+ static qboolean cullback[6] = { true, false, true, false, false, true };
+ GL_CullFace(cullback[side] ? r_refdef.view.cullface_back : r_refdef.view.cullface_front);
+ }
+ else if(r_shadow_shadowmode == 3)
+ GL_CullFace(r_refdef.view.cullface_back);
+#else
+ GL_CullFace(GL_NONE);
+#endif
GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height);
GL_DepthMask(true);
GL_DepthTest(true);
CHECKGLERROR
}
- if (r_shadow_usingshadowmap2d || r_shadow_usingshadowmaprect)
+ if (r_shadow_shadowmapvsdct && (r_shadow_usingshadowmap2d || r_shadow_usingshadowmaprect))
{
- R_Mesh_TexBindCubeMap(GL20TU_CUBEPROJECTION, R_GetTexture(r_shadow_shadowmapcubeprojectiontexture[r_shadow_shadowmaplod]));
+ R_Mesh_TexBindCubeMap(GL20TU_CUBEPROJECTION, R_GetTexture(r_shadow_shadowmapvsdcttexture));
CHECKGLERROR
}
}
if ((r_shadow_shadowmapping_maxsize.integer >> i) > lodlinear)
r_shadow_shadowmaplod = i;
- size = bound(1, r_shadow_shadowmapping_maxsize.integer >> r_shadow_shadowmaplod, 2048);
+ size = r_shadow_shadowmode == 3 ? r_shadow_shadowmapping_maxsize.integer >> r_shadow_shadowmaplod : lodlinear;
+ size = bound(1, size, 2048);
//Con_Printf("distance %f lodlinear %i (lod %i) size %i\n", distance, lodlinear, r_shadow_shadowmaplod, size);
dlight_t *light;
size_t range;
- if (r_shadow_shadowmapmaxsize != bound(1, r_shadow_shadowmapping_maxsize.integer, 2048) || r_shadow_shadowmode != r_shadow_shadowmapping.integer || r_shadow_shadowmapfilter != r_shadow_shadowmapping_filterquality.integer || r_shadow_shadowmapborder != bound(0, r_shadow_shadowmapping_bordersize.integer, 16))
+ if (r_shadow_shadowmapmaxsize != bound(1, r_shadow_shadowmapping_maxsize.integer, 2048) ||
+ (r_shadow_shadowmode != 0) != (r_shadow_shadowmapping.integer != 0) ||
+ r_shadow_shadowmapvsdct != (r_shadow_shadowmapping_vsdct.integer != 0) ||
+ r_shadow_shadowmaptexturetype != r_shadow_shadowmapping_texturetype.integer ||
+ r_shadow_shadowmapfilterquality != r_shadow_shadowmapping_filterquality.integer ||
+ r_shadow_shadowmapprecision != r_shadow_shadowmapping_precision.integer ||
+ r_shadow_shadowmapborder != bound(0, r_shadow_shadowmapping_bordersize.integer, 16))
R_Shadow_FreeShadowMaps();
if (r_editlights.integer)
projects / xonotic / darkplaces.git / blobdiff