X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=r_shadow.c;h=aca5afca6fdd99a6821f1f0ea4de87a893e32b01;hb=14b5649a2b45037ad244a2d2c2dcae6049fc6ce6;hp=6670fab919d4fd20e49d6fddef61cccfed41b36f;hpb=6aa5a03c470f7a0ee54459b3a9263b771626b8c4;p=xonotic%2Fdarkplaces.git diff --git a/r_shadow.c b/r_shadow.c index 6670fab9..aca5afca 100644 --- a/r_shadow.c +++ b/r_shadow.c @@ -312,6 +312,7 @@ cvar_t r_shadow_shadowmapping_nearclip = {CVAR_SAVE, "r_shadow_shadowmapping_nea cvar_t r_shadow_shadowmapping_bias = {CVAR_SAVE, "r_shadow_shadowmapping_bias", "0.03", "shadowmap bias parameter (this is multiplied by nearclip * 1024 / lodsize)"}; cvar_t r_shadow_shadowmapping_polygonfactor = {CVAR_SAVE, "r_shadow_shadowmapping_polygonfactor", "2", "slope-dependent shadowmapping bias"}; cvar_t r_shadow_shadowmapping_polygonoffset = {CVAR_SAVE, "r_shadow_shadowmapping_polygonoffset", "0", "constant shadowmapping bias"}; +cvar_t r_shadow_sortsurfaces = {0, "r_shadow_sortsurfaces", "1", "improve performance by sorting illuminated surfaces by texture"}; cvar_t r_shadow_polygonfactor = {0, "r_shadow_polygonfactor", "0", "how much to enlarge shadow volume polygons when rendering (should be 0!)"}; cvar_t r_shadow_polygonoffset = {0, "r_shadow_polygonoffset", "1", "how much to push shadow volumes into the distance when rendering, to reduce chances of zfighting artifacts (should not be less than 0)"}; cvar_t r_shadow_texture3d = {0, "r_shadow_texture3d", "1", "use 3D voxel textures for spherical attenuation rather than cylindrical (does not affect OpenGL 2.0 render path)"}; @@ -668,6 +669,7 @@ void R_Shadow_Init(void) Cvar_RegisterVariable(&r_shadow_shadowmapping_bias); Cvar_RegisterVariable(&r_shadow_shadowmapping_polygonfactor); Cvar_RegisterVariable(&r_shadow_shadowmapping_polygonoffset); + Cvar_RegisterVariable(&r_shadow_sortsurfaces); Cvar_RegisterVariable(&r_shadow_polygonfactor); Cvar_RegisterVariable(&r_shadow_polygonoffset); Cvar_RegisterVariable(&r_shadow_texture3d); @@ -2286,140 +2288,6 @@ int bboxedges[12][2] = qboolean R_Shadow_ScissorForBBox(const float *mins, const float *maxs) { - int i, ix1, iy1, ix2, iy2; - float x1, y1, x2, y2; - vec4_t v, v2; - float vertex[20][3]; - int j, k; - vec4_t plane4f; - int numvertices; - float corner[8][4]; - float dist[8]; - int sign[8]; - float f; - - r_shadow_lightscissor[0] = r_refdef.view.viewport.x; - r_shadow_lightscissor[1] = r_refdef.view.viewport.y; - r_shadow_lightscissor[2] = r_refdef.view.viewport.width; - r_shadow_lightscissor[3] = r_refdef.view.viewport.height; - - if (!r_shadow_scissor.integer) - return false; - - // if view is inside the light box, just say yes it's visible - if (BoxesOverlap(r_refdef.view.origin, r_refdef.view.origin, mins, maxs)) - return false; - - x1 = y1 = x2 = y2 = 0; - - // transform all corners that are infront of the nearclip plane - VectorNegate(r_refdef.view.frustum[4].normal, plane4f); - plane4f[3] = r_refdef.view.frustum[4].dist; - numvertices = 0; - for (i = 0;i < 8;i++) - { - Vector4Set(corner[i], (i & 1) ? maxs[0] : mins[0], (i & 2) ? maxs[1] : mins[1], (i & 4) ? maxs[2] : mins[2], 1); - dist[i] = DotProduct4(corner[i], plane4f); - sign[i] = dist[i] > 0; - if (!sign[i]) - { - VectorCopy(corner[i], vertex[numvertices]); - numvertices++; - } - } - // if some points are behind the nearclip, add clipped edge points to make - // sure that the scissor boundary is complete - if (numvertices > 0 && numvertices < 8) - { - // add clipped edge points - for (i = 0;i < 12;i++) - { - j = bboxedges[i][0]; - k = bboxedges[i][1]; - if (sign[j] != sign[k]) - { - f = dist[j] / (dist[j] - dist[k]); - VectorLerp(corner[j], f, corner[k], vertex[numvertices]); - numvertices++; - } - } - } - - // if we have no points to check, the light is behind the view plane - if (!numvertices) - return true; - - // if we have some points to transform, check what screen area is covered - x1 = y1 = x2 = y2 = 0; - v[3] = 1.0f; - //Con_Printf("%i vertices to transform...\n", numvertices); - for (i = 0;i < numvertices;i++) - { - VectorCopy(vertex[i], v); - R_Viewport_TransformToScreen(&r_refdef.view.viewport, v, v2); - //Con_Printf("%.3f %.3f %.3f %.3f transformed to %.3f %.3f %.3f %.3f\n", v[0], v[1], v[2], v[3], v2[0], v2[1], v2[2], v2[3]); - if (i) - { - if (x1 > v2[0]) x1 = v2[0]; - if (x2 < v2[0]) x2 = v2[0]; - if (y1 > v2[1]) y1 = v2[1]; - if (y2 < v2[1]) y2 = v2[1]; - } - else - { - x1 = x2 = v2[0]; - y1 = y2 = v2[1]; - } - } - - // now convert the scissor rectangle to integer screen coordinates - ix1 = (int)(x1 - 1.0f); - //iy1 = vid.height - (int)(y2 - 1.0f); - //iy1 = r_refdef.view.viewport.width + 2 * r_refdef.view.viewport.x - (int)(y2 - 1.0f); - iy1 = (int)(y1 - 1.0f); - ix2 = (int)(x2 + 1.0f); - //iy2 = vid.height - (int)(y1 + 1.0f); - //iy2 = r_refdef.view.viewport.height + 2 * r_refdef.view.viewport.y - (int)(y1 + 1.0f); - iy2 = (int)(y2 + 1.0f); - //Con_Printf("%f %f %f %f\n", x1, y1, x2, y2); - - // clamp it to the screen - if (ix1 < r_refdef.view.viewport.x) ix1 = r_refdef.view.viewport.x; - if (iy1 < r_refdef.view.viewport.y) iy1 = r_refdef.view.viewport.y; - if (ix2 > r_refdef.view.viewport.x + r_refdef.view.viewport.width) ix2 = r_refdef.view.viewport.x + r_refdef.view.viewport.width; - if (iy2 > r_refdef.view.viewport.y + r_refdef.view.viewport.height) iy2 = r_refdef.view.viewport.y + r_refdef.view.viewport.height; - - // if it is inside out, it's not visible - if (ix2 <= ix1 || iy2 <= iy1) - return true; - - // the light area is visible, set up the scissor rectangle - r_shadow_lightscissor[0] = ix1; - r_shadow_lightscissor[1] = iy1; - r_shadow_lightscissor[2] = ix2 - ix1; - r_shadow_lightscissor[3] = iy2 - iy1; - - // D3D Y coordinate is top to bottom, OpenGL is bottom to top, fix the D3D one - switch(vid.renderpath) - { - case RENDERPATH_D3D9: - case RENDERPATH_D3D10: - case RENDERPATH_D3D11: - r_shadow_lightscissor[1] = vid.height - r_shadow_lightscissor[1] - r_shadow_lightscissor[3]; - break; - case RENDERPATH_GL11: - case RENDERPATH_GL13: - case RENDERPATH_GL20: - case RENDERPATH_CGGL: - break; - } - - r_refdef.stats.lights_scissored++; - return false; - - /* - VorteX: originally written by divVerent, that code is broken on ATI - if (!r_shadow_scissor.integer) { r_shadow_lightscissor[0] = r_refdef.view.viewport.x; @@ -2429,17 +2297,13 @@ qboolean R_Shadow_ScissorForBBox(const float *mins, const float *maxs) return false; } if(R_ScissorForBBox(mins, maxs, r_shadow_lightscissor)) - { - if(r_shadow_lightscissor[0] != r_refdef.view.viewport.x - || r_shadow_lightscissor[1] != r_refdef.view.viewport.y - || r_shadow_lightscissor[2] != r_refdef.view.viewport.width - || r_shadow_lightscissor[3] != r_refdef.view.viewport.height) - r_refdef.stats.lights_scissored++; - return false; - } - else return true; // invisible - */ + if(r_shadow_lightscissor[0] != r_refdef.view.viewport.x + || r_shadow_lightscissor[1] != r_refdef.view.viewport.y + || r_shadow_lightscissor[2] != r_refdef.view.viewport.width + || r_shadow_lightscissor[3] != r_refdef.view.viewport.height) + r_refdef.stats.lights_scissored++; + return false; } static void R_Shadow_RenderLighting_Light_Vertex_Shading(int firstvertex, int numverts, const float *diffusecolor, const float *ambientcolor) @@ -3956,7 +3820,7 @@ void R_Shadow_DrawPrepass(void) { lightindex = r_shadow_debuglight.integer; light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); - if (light && (light->flags & flag)) + if (light && (light->flags & flag) && light->rtlight.draw) R_Shadow_DrawLight(&light->rtlight); } else @@ -3965,13 +3829,14 @@ void R_Shadow_DrawPrepass(void) for (lightindex = 0;lightindex < range;lightindex++) { light = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, lightindex); - if (light && (light->flags & flag)) + if (light && (light->flags & flag) && light->rtlight.draw) R_Shadow_DrawLight(&light->rtlight); } } if (r_refdef.scene.rtdlight) for (lnum = 0;lnum < r_refdef.scene.numlights;lnum++) - R_Shadow_DrawLight(r_refdef.scene.lights[lnum]); + if (r_refdef.scene.lights[lnum]->draw) + R_Shadow_DrawLight(r_refdef.scene.lights[lnum]); R_Mesh_ResetRenderTargets(); @@ -6139,7 +6004,7 @@ LIGHT SAMPLING ============================================================================= */ -void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, int dynamic) +void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const vec3_t p, qboolean dynamic, qboolean rtworld) { VectorClear(diffusecolor); VectorClear(diffusenormal); @@ -6154,16 +6019,57 @@ void R_CompleteLightPoint(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffu if (dynamic) { - int i; - float f, v[3]; + int i, numlights, flag; + float f, relativepoint[3], dist, dist2, lightradius2; rtlight_t *light; + dlight_t *dlight; + + // sample rtlights + if (rtworld) + { + flag = r_refdef.scene.rtworld ? LIGHTFLAG_REALTIMEMODE : LIGHTFLAG_NORMALMODE; + numlights = Mem_ExpandableArray_IndexRange(&r_shadow_worldlightsarray); + for (i = 0; i < numlights; i++) + { + dlight = (dlight_t *) Mem_ExpandableArray_RecordAtIndex(&r_shadow_worldlightsarray, i); + if (!dlight) + continue; + light = &dlight->rtlight; + if (!(light->flags & flag)) + continue; + // sample + lightradius2 = light->radius * light->radius; + VectorSubtract(light->shadoworigin, p, relativepoint); + dist2 = VectorLength2(relativepoint); + if (dist2 >= lightradius2) + continue; + dist = sqrt(dist2) / light->radius; + f = dist < 1 ? (r_shadow_lightintensityscale.value * ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist))) : 0; + if (f <= 0) + continue; + // todo: add to both ambient and diffuse + if (!light->shadow || CL_TraceLine(p, light->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1) + VectorMA(ambientcolor, f, light->currentcolor, ambientcolor); + } + } + + // sample dlights for (i = 0;i < r_refdef.scene.numlights;i++) { light = r_refdef.scene.lights[i]; - Matrix4x4_Transform(&light->matrix_worldtolight, p, v); - f = 1 - VectorLength2(v); - if (f > 0 && CL_TraceLine(p, light->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1) - VectorMA(ambientcolor, f, light->currentcolor, ambientcolor); + // sample + lightradius2 = light->radius * light->radius; + VectorSubtract(light->shadoworigin, p, relativepoint); + dist2 = VectorLength2(relativepoint); + if (dist2 >= lightradius2) + continue; + dist = sqrt(dist2) / light->radius; + f = dist < 1 ? (r_shadow_lightintensityscale.value * ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist))) : 0; + if (f <= 0) + continue; + // todo: add to both ambient and diffuse + if (!light->shadow || CL_TraceLine(p, light->shadoworigin, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID, true, false, NULL, false).fraction == 1) + VectorMA(ambientcolor, f, light->color, ambientcolor); } } }