qboolean r_shadow_usingshadowmaprect;
qboolean r_shadow_usingshadowmap2d;
qboolean r_shadow_usingshadowmapcube;
+qboolean r_shadow_usingshadowmaportho;
int r_shadow_shadowmapside;
float r_shadow_shadowmap_texturescale[2];
float r_shadow_shadowmap_parameters[4];
qboolean r_shadow_shadowmapsampler;
int r_shadow_shadowmappcf;
int r_shadow_shadowmapborder;
+matrix4x4_t r_shadow_shadowmapmatrix;
int r_shadow_lightscissor[4];
qboolean r_shadow_usingdeferredprepass;
}
}
+qboolean R_Shadow_ShadowMappingEnabled(void)
+{
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
+ case R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE:
+ return true;
+ default:
+ return false;
+ }
+}
+
void R_Shadow_FreeShadowMaps(void)
{
int i;
}
// this next test usually clips off more sides than the former, but occasionally clips fewer/different ones, so do both and combine results
// check if frustum corners/origin cross plane sides
+#if 1
+ // infinite version, assumes frustum corners merely give direction and extend to infinite distance
+ Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.origin, p);
+ dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn);
+ masks[0] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
+ masks[1] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
+ dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn);
+ masks[2] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
+ masks[3] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
+ dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn);
+ masks[4] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
+ masks[5] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
+ for (i = 0;i < 4;i++)
+ {
+ Matrix4x4_Transform(&rtlight->matrix_worldtolight, r_refdef.view.frustumcorner[i], n);
+ VectorSubtract(n, p, n);
+ dp = n[0] + n[1], dn = n[0] - n[1], ap = fabs(dp), an = fabs(dn);
+ if(ap > 0) masks[0] |= dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2);
+ if(an > 0) masks[1] |= dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2);
+ dp = n[1] + n[2], dn = n[1] - n[2], ap = fabs(dp), an = fabs(dn);
+ if(ap > 0) masks[2] |= dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4);
+ if(an > 0) masks[3] |= dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4);
+ dp = n[2] + n[0], dn = n[2] - n[0], ap = fabs(dp), an = fabs(dn);
+ if(ap > 0) masks[4] |= dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0);
+ if(an > 0) masks[5] |= dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0);
+ }
+#else
+ // finite version, assumes corners are a finite distance from origin dependent on far plane
for (i = 0;i < 5;i++)
{
Matrix4x4_Transform(&rtlight->matrix_worldtolight, !i ? r_refdef.view.origin : r_refdef.view.frustumcorner[i-1], p);
- dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn),
+ dp = p[0] + p[1], dn = p[0] - p[1], ap = fabs(dp), an = fabs(dn);
masks[0] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<0)|(1<<2) : (2<<0)|(2<<2));
masks[1] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<0)|(2<<2) : (2<<0)|(1<<2));
- dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn),
+ dp = p[1] + p[2], dn = p[1] - p[2], ap = fabs(dp), an = fabs(dn);
masks[2] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<2)|(1<<4) : (2<<2)|(2<<4));
masks[3] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<2)|(2<<4) : (2<<2)|(1<<4));
- dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn),
+ dp = p[2] + p[0], dn = p[2] - p[0], ap = fabs(dp), an = fabs(dn);
masks[4] |= ap <= bias*an ? 0x3F : (dp >= 0 ? (1<<4)|(1<<0) : (2<<4)|(2<<0));
masks[5] |= an <= bias*ap ? 0x3F : (dn >= 0 ? (1<<4)|(2<<0) : (2<<4)|(1<<0));
}
+#endif
return sides & masks[0] & masks[1] & masks[2] & masks[3] & masks[4] & masks[5];
}
r_shadow_usingshadowmaprect = false;
r_shadow_usingshadowmapcube = false;
r_shadow_usingshadowmap2d = false;
+ r_shadow_usingshadowmaportho = false;
CHECKGLERROR
}
r_shadow_shadowmapvsdcttexture = R_LoadTextureCubeMap(r_shadow_texturepool, "shadowmapvsdct", 1, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_CLAMP | TEXF_ALPHA, NULL);
}
-void R_Shadow_RenderMode_ShadowMap(int side, int clear, int size)
+static void R_Shadow_MakeShadowMap(int side, int size)
{
int status;
- int maxsize;
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
+ if (r_shadow_shadowmap2dtexture) return;
+ r_shadow_shadowmap2dtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "shadowmap", size*2, size*(vid.support.arb_texture_non_power_of_two ? 3 : 4), r_shadow_shadowmapdepthbits, 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
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
+ if (r_shadow_shadowmaprectangletexture) return;
+ r_shadow_shadowmaprectangletexture = R_LoadTextureShadowMapRectangle(r_shadow_texturepool, "shadowmap", size*2, size*3, r_shadow_shadowmapdepthbits, 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
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE:
+ if (r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]) return;
+ r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod] = R_LoadTextureShadowMapCube(r_shadow_texturepool, "shadowmapcube", size, r_shadow_shadowmapdepthbits, r_shadow_shadowmapsampler);
+ qglGenFramebuffersEXT(1, &r_shadow_fbocubeside[r_shadow_shadowmaplod]);CHECKGLERROR
+ qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_fbocubeside[r_shadow_shadowmaplod]);CHECKGLERROR
+ qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + side, R_GetTexture(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]), 0);CHECKGLERROR
+ break;
+ default:
+ return;
+ }
+ // render depth into the fbo, do not render color at all
+ qglDrawBuffer(GL_NONE);CHECKGLERROR
+ qglReadBuffer(GL_NONE);CHECKGLERROR
+ status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR
+ if (status != GL_FRAMEBUFFER_COMPLETE_EXT && (r_shadow_shadowmapping.integer || r_shadow_deferred.integer))
+ {
+ Con_Printf("R_Shadow_MakeShadowMap: glCheckFramebufferStatusEXT returned %i\n", status);
+ Cvar_SetValueQuick(&r_shadow_shadowmapping, 0);
+ Cvar_SetValueQuick(&r_shadow_deferred, 0);
+ }
+}
+
+void R_Shadow_RenderMode_ShadowMap(int side, int clear, int size)
+{
float nearclip, farclip, bias;
r_viewport_t viewport;
+ int flipped;
GLuint fbo = 0;
CHECKGLERROR
- maxsize = r_shadow_shadowmapmaxsize;
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_parameters[2] = 0.5f + 0.5f * (farclip + nearclip) / (farclip - nearclip);
- r_shadow_shadowmap_parameters[3] = -nearclip * farclip / (farclip - nearclip) - 0.5f * bias;
+ r_shadow_shadowmap_parameters[1] = -nearclip * farclip / (farclip - nearclip) - 0.5f * bias;
+ r_shadow_shadowmap_parameters[3] = 0.5f + 0.5f * (farclip + nearclip) / (farclip - nearclip);
r_shadow_shadowmapside = side;
r_shadow_shadowmapsize = size;
- if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D)
+ switch (r_shadow_shadowmode)
{
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
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_shadowmap_parameters[2] = r_shadow_shadowmapvsdct ? 2.5f*size : size;
R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapborder, nearclip, farclip, NULL);
if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAP2D) goto init_done;
if (r_shadow_shadowmapvsdct && !r_shadow_shadowmapvsdcttexture)
R_Shadow_MakeVSDCT();
if (!r_shadow_shadowmap2dtexture)
- {
-#if 1
- int w = maxsize*2, h = vid.support.arb_texture_non_power_of_two ? maxsize*3 : maxsize*4;
- r_shadow_shadowmap2dtexture = R_LoadTextureShadowMap2D(r_shadow_texturepool, "shadowmap", w, h, r_shadow_shadowmapdepthbits, 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
- // render depth into the fbo, do not render color at all
- qglDrawBuffer(GL_NONE);CHECKGLERROR
- qglReadBuffer(GL_NONE);CHECKGLERROR
- status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT && (r_shadow_shadowmapping.integer || r_shadow_deferred.integer))
- {
- Con_Printf("R_Shadow_RenderMode_ShadowMap: glCheckFramebufferStatusEXT returned %i\n", status);
- Cvar_SetValueQuick(&r_shadow_shadowmapping, 0);
- Cvar_SetValueQuick(&r_shadow_deferred, 0);
- }
-#endif
- }
+ R_Shadow_MakeShadowMap(side, r_shadow_shadowmapmaxsize);
CHECKGLERROR
if (r_shadow_shadowmap2dtexture) fbo = r_shadow_fbo2d;
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_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D;
- }
- else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE)
- {
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
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_shadowmap_parameters[2] = r_shadow_shadowmapvsdct ? 2.5f*size : size;
R_Viewport_InitRectSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, r_shadow_shadowmapborder, nearclip, farclip, NULL);
if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE) goto init_done;
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_shadowmapdepthbits, 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
- // render depth into the fbo, do not render color at all
- qglDrawBuffer(GL_NONE);CHECKGLERROR
- qglReadBuffer(GL_NONE);CHECKGLERROR
- status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT && (r_shadow_shadowmapping.integer || r_shadow_deferred.integer))
- {
- Con_Printf("R_Shadow_RenderMode_ShadowMap: glCheckFramebufferStatusEXT returned %i\n", status);
- Cvar_SetValueQuick(&r_shadow_shadowmapping, 0);
- Cvar_SetValueQuick(&r_shadow_deferred, 0);
- }
-#endif
- }
+ R_Shadow_MakeShadowMap(side, r_shadow_shadowmapmaxsize);
CHECKGLERROR
if(r_shadow_shadowmaprectangletexture) fbo = r_shadow_fborectangle;
r_shadow_shadowmap_texturescale[0] = 1.0f;
r_shadow_shadowmap_texturescale[1] = 1.0f;
r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE;
- }
- else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE)
- {
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE:
r_shadow_shadowmap_parameters[0] = 1.0f;
- r_shadow_shadowmap_parameters[1] = 1.0f;
+ r_shadow_shadowmap_parameters[2] = 1.0f;
R_Viewport_InitCubeSideView(&viewport, &rsurface.rtlight->matrix_lighttoworld, side, size, nearclip, farclip, NULL);
if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE) goto init_done;
// simple cube approach
if (!r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod])
- {
- #if 1
- r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod] = R_LoadTextureShadowMapCube(r_shadow_texturepool, "shadowmapcube", size, r_shadow_shadowmapdepthbits, r_shadow_shadowmapsampler);
- qglGenFramebuffersEXT(1, &r_shadow_fbocubeside[r_shadow_shadowmaplod]);CHECKGLERROR
- qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_fbocubeside[r_shadow_shadowmaplod]);CHECKGLERROR
- qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + side, R_GetTexture(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]), 0);CHECKGLERROR
- // render depth into the fbo, do not render color at all
- qglDrawBuffer(GL_NONE);CHECKGLERROR
- qglReadBuffer(GL_NONE);CHECKGLERROR
- status = qglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);CHECKGLERROR
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT && (r_shadow_shadowmapping.integer || r_shadow_deferred.integer))
- {
- Con_Printf("R_Shadow_RenderMode_ShadowMap: glCheckFramebufferStatusEXT returned %i\n", status);
- Cvar_SetValueQuick(&r_shadow_shadowmapping, 0);
- Cvar_SetValueQuick(&r_shadow_deferred, 0);
- }
- #endif
- }
+ R_Shadow_MakeShadowMap(side, size);
CHECKGLERROR
if (r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]) fbo = r_shadow_fbocubeside[r_shadow_shadowmaplod];
r_shadow_shadowmap_texturescale[0] = 0.0f;
r_shadow_shadowmap_texturescale[1] = 0.0f;
r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE;
+ break;
+ default:
+ break;
}
R_Shadow_RenderMode_Reset();
init_done:
R_SetViewport(&viewport);
- if(r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAP2D || r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE)
+ switch (r_shadow_rendermode)
{
- int flipped = (side & 1) ^ (side >> 2);
+ case R_SHADOW_RENDERMODE_SHADOWMAP2D:
+ case R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE:
+ flipped = (side & 1) ^ (side >> 2);
r_refdef.view.cullface_front = flipped ? r_shadow_cullface_back : r_shadow_cullface_front;
r_refdef.view.cullface_back = flipped ? r_shadow_cullface_front : r_shadow_cullface_back;
GL_CullFace(r_refdef.view.cullface_back);
GL_Clear(GL_DEPTH_BUFFER_BIT);
}
GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height);
- }
- else if(r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE)
- {
+ break;
+ case R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE:
qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + side, R_GetTexture(r_shadow_shadowmapcubetexture[r_shadow_shadowmaplod]), 0);CHECKGLERROR
GL_Scissor(viewport.x, viewport.y, viewport.width, viewport.height);
if (clear)
GL_Clear(GL_DEPTH_BUFFER_BIT);
+ break;
+ default:
+ break;
}
CHECKGLERROR
}
}
if (shadowmapping)
{
- if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D)
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
r_shadow_usingshadowmap2d = true;
- else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE)
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
r_shadow_usingshadowmaprect = true;
- else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE)
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE:
r_shadow_usingshadowmapcube = true;
+ break;
+ default:
+ break;
+ }
}
R_Mesh_ColorPointer(rsurface.array_color4f, 0, 0);
CHECKGLERROR
qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, r_shadow_prepasslightingfbo);CHECKGLERROR
if (shadowmapping)
{
- if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAP2D)
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
r_shadow_usingshadowmap2d = true;
- else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE)
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
r_shadow_usingshadowmaprect = true;
- else if (r_shadow_shadowmode == R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE)
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPCUBESIDE:
r_shadow_usingshadowmapcube = true;
+ break;
+ default:
+ break;
+ }
}
// render the lighting
relativeshadowmaxs[0] = relativeshadoworigin[0] + relativeshadowradius;
relativeshadowmaxs[1] = relativeshadoworigin[1] + relativeshadowradius;
relativeshadowmaxs[2] = relativeshadoworigin[2] + relativeshadowradius;
- if (r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE || r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE || r_shadow_rendermode == R_SHADOW_RENDERMODE_SHADOWMAP2D)
+ switch (r_shadow_rendermode)
{
+ case R_SHADOW_RENDERMODE_SHADOWMAP2D:
+ case R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE:
+ case R_SHADOW_RENDERMODE_SHADOWMAPCUBESIDE:
ent->model->DrawShadowMap(r_shadow_shadowmapside, ent, relativeshadoworigin, NULL, relativeshadowradius, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, NULL, relativeshadowmins, relativeshadowmaxs);
- }
- else
+ break;
+ default:
ent->model->DrawShadowVolume(ent, relativeshadoworigin, NULL, relativeshadowradius, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, relativeshadowmins, relativeshadowmaxs);
+ break;
+ }
rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
}
r_shadow_shadowmapborder != bound(0, r_shadow_shadowmapping_bordersize.integer, 16))
R_Shadow_FreeShadowMaps();
+ r_shadow_usingshadowmaportho = false;
+
switch (vid.renderpath)
{
case RENDERPATH_GL20:
extern cvar_t r_shadows_castfrombmodels;
extern cvar_t r_shadows_throwdistance;
extern cvar_t r_shadows_throwdirection;
+extern cvar_t r_shadows_focus;
+extern cvar_t r_shadows_shadowmapscale;
+
+void R_Shadow_PrepareModelShadows(void)
+{
+ int i;
+ float scale, size, radius, dot1, dot2;
+ vec3_t shadowdir, shadowforward, shadowright, shadoworigin, shadowfocus, shadowmins, shadowmaxs;
+ entity_render_t *ent;
+
+ if (!r_refdef.scene.numentities)
+ return;
+
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
+ break;
+ case R_SHADOW_SHADOWMODE_STENCIL:
+ for (i = 0;i < r_refdef.scene.numentities;i++)
+ {
+ ent = r_refdef.scene.entities[i];
+ if (!ent->animcache_vertex3f && ent->model && ent->model->DrawShadowVolume != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW))
+ R_AnimCache_GetEntity(ent, false, false);
+ }
+ return;
+ default:
+ return;
+ }
+
+ size = 2*r_shadow_shadowmapmaxsize;
+ scale = r_shadow_shadowmapping_precision.value * r_shadows_shadowmapscale.value;
+ radius = 0.5f * size / scale;
+
+ Math_atov(r_shadows_throwdirection.string, shadowdir);
+ VectorNormalize(shadowdir);
+ dot1 = DotProduct(r_refdef.view.forward, shadowdir);
+ dot2 = DotProduct(r_refdef.view.up, shadowdir);
+ if (fabs(dot1) <= fabs(dot2))
+ VectorMA(r_refdef.view.forward, -dot1, shadowdir, shadowforward);
+ else
+ VectorMA(r_refdef.view.up, -dot2, shadowdir, shadowforward);
+ VectorNormalize(shadowforward);
+ CrossProduct(shadowdir, shadowforward, shadowright);
+ Math_atov(r_shadows_focus.string, shadowfocus);
+ VectorM(shadowfocus[0], r_refdef.view.right, shadoworigin);
+ VectorMA(shadoworigin, shadowfocus[1], r_refdef.view.up, shadoworigin);
+ VectorMA(shadoworigin, -shadowfocus[2], r_refdef.view.forward, shadoworigin);
+ VectorAdd(shadoworigin, r_refdef.view.origin, shadoworigin);
+ if (shadowfocus[0] || shadowfocus[1] || shadowfocus[2])
+ dot1 = 1;
+ VectorMA(shadoworigin, (1.0f - fabs(dot1)) * radius, shadowforward, shadoworigin);
+
+ shadowmins[0] = shadoworigin[0] - r_shadows_throwdistance.value * fabs(shadowdir[0]) - radius * (fabs(shadowforward[0]) + fabs(shadowright[0]));
+ shadowmins[1] = shadoworigin[1] - r_shadows_throwdistance.value * fabs(shadowdir[1]) - radius * (fabs(shadowforward[1]) + fabs(shadowright[1]));
+ shadowmins[2] = shadoworigin[2] - r_shadows_throwdistance.value * fabs(shadowdir[2]) - radius * (fabs(shadowforward[2]) + fabs(shadowright[2]));
+ shadowmaxs[0] = shadoworigin[0] + r_shadows_throwdistance.value * fabs(shadowdir[0]) + radius * (fabs(shadowforward[0]) + fabs(shadowright[0]));
+ shadowmaxs[1] = shadoworigin[1] + r_shadows_throwdistance.value * fabs(shadowdir[1]) + radius * (fabs(shadowforward[1]) + fabs(shadowright[1]));
+ shadowmaxs[2] = shadoworigin[2] + r_shadows_throwdistance.value * fabs(shadowdir[2]) + radius * (fabs(shadowforward[2]) + fabs(shadowright[2]));
+
+ for (i = 0;i < r_refdef.scene.numentities;i++)
+ {
+ ent = r_refdef.scene.entities[i];
+ if (!BoxesOverlap(ent->mins, ent->maxs, shadowmins, shadowmaxs))
+ continue;
+ // cast shadows from anything of the map (submodels are optional)
+ if (!ent->animcache_vertex3f && ent->model && ent->model->DrawShadowMap != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW))
+ R_AnimCache_GetEntity(ent, false, false);
+ }
+}
+
+void R_DrawModelShadowMaps(void)
+{
+ int i;
+ float relativethrowdistance, scale, size, radius, nearclip, farclip, bias, dot1, dot2;
+ entity_render_t *ent;
+ vec3_t relativelightorigin;
+ vec3_t relativelightdirection, relativeforward, relativeright;
+ vec3_t relativeshadowmins, relativeshadowmaxs;
+ vec3_t shadowdir, shadowforward, shadowright, shadoworigin, shadowfocus;
+ float m[12];
+ matrix4x4_t shadowmatrix, cameramatrix, mvpmatrix, invmvpmatrix, scalematrix, texmatrix;
+ r_viewport_t viewport;
+ GLuint fbo = 0;
+
+ if (!r_refdef.scene.numentities)
+ return;
+
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
+ break;
+ default:
+ return;
+ }
+
+ CHECKGLERROR
+ R_ResetViewRendering3D();
+ R_Shadow_RenderMode_Begin();
+ R_Shadow_RenderMode_ActiveLight(NULL);
+
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
+ if (!r_shadow_shadowmap2dtexture)
+ R_Shadow_MakeShadowMap(0, r_shadow_shadowmapmaxsize);
+ fbo = r_shadow_fbo2d;
+ 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_rendermode = R_SHADOW_RENDERMODE_SHADOWMAP2D;
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
+ if (!r_shadow_shadowmaprectangletexture)
+ R_Shadow_MakeShadowMap(0, r_shadow_shadowmapmaxsize);
+ fbo = r_shadow_fborectangle;
+ r_shadow_shadowmap_texturescale[0] = 1.0f;
+ r_shadow_shadowmap_texturescale[1] = 1.0f;
+ r_shadow_rendermode = R_SHADOW_RENDERMODE_SHADOWMAPRECTANGLE;
+ break;
+ default:
+ break;
+ }
+
+ size = 2*r_shadow_shadowmapmaxsize;
+ scale = (r_shadow_shadowmapping_precision.value * r_shadows_shadowmapscale.value) / size;
+ radius = 0.5f / scale;
+ nearclip = -r_shadows_throwdistance.value;
+ farclip = r_shadows_throwdistance.value;
+ bias = r_shadow_shadowmapping_bias.value * r_shadow_shadowmapping_nearclip.value / (2 * r_shadows_throwdistance.value) * (1024.0f / size);
+
+ r_shadow_shadowmap_parameters[0] = size;
+ r_shadow_shadowmap_parameters[1] = size;
+ r_shadow_shadowmap_parameters[2] = 1.0;
+ r_shadow_shadowmap_parameters[3] = bound(0.0f, 1.0f - r_shadows_darken.value, 1.0f);
+
+ Math_atov(r_shadows_throwdirection.string, shadowdir);
+ VectorNormalize(shadowdir);
+ Math_atov(r_shadows_focus.string, shadowfocus);
+ VectorM(shadowfocus[0], r_refdef.view.right, shadoworigin);
+ VectorMA(shadoworigin, shadowfocus[1], r_refdef.view.up, shadoworigin);
+ VectorMA(shadoworigin, -shadowfocus[2], r_refdef.view.forward, shadoworigin);
+ VectorAdd(shadoworigin, r_refdef.view.origin, shadoworigin);
+ dot1 = DotProduct(r_refdef.view.forward, shadowdir);
+ dot2 = DotProduct(r_refdef.view.up, shadowdir);
+ if (fabs(dot1) <= fabs(dot2))
+ VectorMA(r_refdef.view.forward, -dot1, shadowdir, shadowforward);
+ else
+ VectorMA(r_refdef.view.up, -dot2, shadowdir, shadowforward);
+ VectorNormalize(shadowforward);
+ VectorM(scale, shadowforward, &m[0]);
+ if (shadowfocus[0] || shadowfocus[1] || shadowfocus[2])
+ dot1 = 1;
+ m[3] = fabs(dot1) * 0.5f - DotProduct(shadoworigin, &m[0]);
+ CrossProduct(shadowdir, shadowforward, shadowright);
+ VectorM(scale, shadowright, &m[4]);
+ m[7] = 0.5f - DotProduct(shadoworigin, &m[4]);
+ VectorM(1.0f / (farclip - nearclip), shadowdir, &m[8]);
+ m[11] = 0.5f - DotProduct(shadoworigin, &m[8]);
+ Matrix4x4_FromArray12FloatD3D(&shadowmatrix, m);
+ Matrix4x4_Invert_Full(&cameramatrix, &shadowmatrix);
+ R_Viewport_InitOrtho(&viewport, &cameramatrix, 0, 0, size, size, 0, 0, 1, 1, 0, -1, NULL);
+
+ VectorMA(shadoworigin, (1.0f - fabs(dot1)) * radius, shadowforward, shadoworigin);
+
+#if 0
+ qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);CHECKGLERROR
+ R_SetupShader_ShowDepth();
+#else
+ qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);CHECKGLERROR
+ R_SetupShader_DepthOrShadow();
+#endif
+ CHECKGLERROR
+ GL_PolygonOffset(r_shadow_shadowmapping_polygonfactor.value, r_shadow_shadowmapping_polygonoffset.value);
+ GL_DepthMask(true);
+ GL_DepthTest(true);
+ R_SetViewport(&viewport);
+ GL_Scissor(viewport.x, viewport.y, min(viewport.width + r_shadow_shadowmapborder, 2*r_shadow_shadowmapmaxsize), viewport.height + r_shadow_shadowmapborder);
+ qglClearDepth(1);
+#if 0
+ qglClearColor(1,1,1,1);
+ GL_Clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+#else
+ GL_Clear(GL_DEPTH_BUFFER_BIT);
+#endif
+ GL_Scissor(viewport.x + r_shadow_shadowmapborder, viewport.y + r_shadow_shadowmapborder, viewport.width - 2*r_shadow_shadowmapborder, viewport.height - 2*r_shadow_shadowmapborder);
+ CHECKGLERROR
+
+ for (i = 0;i < r_refdef.scene.numentities;i++)
+ {
+ ent = r_refdef.scene.entities[i];
+
+ // cast shadows from anything of the map (submodels are optional)
+ if (ent->model && ent->model->DrawShadowMap != NULL && (!ent->model->brush.submodel || r_shadows_castfrombmodels.integer) && (ent->flags & RENDER_SHADOW))
+ {
+ relativethrowdistance = r_shadows_throwdistance.value * Matrix4x4_ScaleFromMatrix(&ent->inversematrix);
+ Matrix4x4_Transform(&ent->inversematrix, shadoworigin, relativelightorigin);
+ Matrix4x4_Transform3x3(&ent->inversematrix, shadowdir, relativelightdirection);
+ Matrix4x4_Transform3x3(&ent->inversematrix, shadowforward, relativeforward);
+ Matrix4x4_Transform3x3(&ent->inversematrix, shadowright, relativeright);
+ relativeshadowmins[0] = relativelightorigin[0] - r_shadows_throwdistance.value * fabs(relativelightdirection[0]) - radius * (fabs(relativeforward[0]) + fabs(relativeright[0]));
+ relativeshadowmins[1] = relativelightorigin[1] - r_shadows_throwdistance.value * fabs(relativelightdirection[1]) - radius * (fabs(relativeforward[1]) + fabs(relativeright[1]));
+ relativeshadowmins[2] = relativelightorigin[2] - r_shadows_throwdistance.value * fabs(relativelightdirection[2]) - radius * (fabs(relativeforward[2]) + fabs(relativeright[2]));
+ relativeshadowmaxs[0] = relativelightorigin[0] + r_shadows_throwdistance.value * fabs(relativelightdirection[0]) + radius * (fabs(relativeforward[0]) + fabs(relativeright[0]));
+ relativeshadowmaxs[1] = relativelightorigin[1] + r_shadows_throwdistance.value * fabs(relativelightdirection[1]) + radius * (fabs(relativeforward[1]) + fabs(relativeright[1]));
+ relativeshadowmaxs[2] = relativelightorigin[2] + r_shadows_throwdistance.value * fabs(relativelightdirection[2]) + radius * (fabs(relativeforward[2]) + fabs(relativeright[2]));
+ RSurf_ActiveModelEntity(ent, false, false, false);
+ ent->model->DrawShadowMap(0, ent, relativelightorigin, relativelightdirection, relativethrowdistance, ent->model->nummodelsurfaces, ent->model->sortedmodelsurfaces, NULL, relativeshadowmins, relativeshadowmaxs);
+ rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
+ }
+ }
+
+ R_Shadow_RenderMode_End();
+
+ Matrix4x4_Concat(&mvpmatrix, &r_refdef.view.viewport.projectmatrix, &r_refdef.view.viewport.viewmatrix);
+ Matrix4x4_Invert_Full(&invmvpmatrix, &mvpmatrix);
+ Matrix4x4_CreateScale3(&scalematrix, size, -size, 1);
+ Matrix4x4_AdjustOrigin(&scalematrix, 0, size, -0.5f * bias);
+ Matrix4x4_Concat(&texmatrix, &scalematrix, &shadowmatrix);
+ Matrix4x4_Concat(&r_shadow_shadowmapmatrix, &texmatrix, &invmvpmatrix);
+
+ r_shadow_usingshadowmaportho = true;
+ switch (r_shadow_shadowmode)
+ {
+ case R_SHADOW_SHADOWMODE_SHADOWMAP2D:
+ r_shadow_usingshadowmap2d = true;
+ break;
+ case R_SHADOW_SHADOWMODE_SHADOWMAPRECTANGLE:
+ r_shadow_usingshadowmaprect = true;
+ break;
+ default:
+ break;
+ }
+}
+
void R_DrawModelShadows(void)
{
int i;
vec3_t relativeshadowmins, relativeshadowmaxs;
vec3_t tmp, shadowdir;
- if (!r_refdef.scene.numentities || !vid.stencil)
+ if (!r_refdef.scene.numentities || !vid.stencil || r_shadow_shadowmode != R_SHADOW_SHADOWMODE_STENCIL)
return;
CHECKGLERROR
projects / xonotic / darkplaces.git / blobdiff