- int i;
- vec3_t p, p2, temp, relativelightorigin, mins, maxs;
- float dist, projectdistance;
- // rough checks
- if (ent->model && ent->model->DrawShadowVolume)
- {
- temp[0] = bound(ent->mins[0], lightorigin[0], ent->maxs[0]) - lightorigin[0];
- temp[1] = bound(ent->mins[1], lightorigin[1], ent->maxs[1]) - lightorigin[1];
- temp[2] = bound(ent->mins[2], lightorigin[2], ent->maxs[2]) - lightorigin[2];
- dist = DotProduct(temp, temp);
- if (dist < cullradius * cullradius)
- {
- if (!Light_CullBox(ent->mins, ent->maxs))
- {
- projectdistance = cullradius - sqrt(dist);
- // calculate projected bounding box and decide if it is on-screen
- VectorCopy(ent->mins, mins);
- VectorCopy(ent->maxs, maxs);
- for (i = 0;i < 8;i++)
- {
- p[0] = i & 1 ? ent->maxs[0] : ent->mins[0];
- p[1] = i & 2 ? ent->maxs[1] : ent->mins[1];
- p[2] = i & 4 ? ent->maxs[2] : ent->mins[2];
- VectorSubtract(p, lightorigin, temp);
- dist = projectdistance / sqrt(DotProduct(temp, temp));
- VectorMA(p, dist, temp, p2);
- if (mins[0] > p2[0]) mins[0] = p2[0];if (maxs[0] < p2[0]) maxs[0] = p2[0];
- if (mins[1] > p2[1]) mins[1] = p2[1];if (maxs[1] < p2[1]) maxs[1] = p2[1];
- if (mins[2] > p2[2]) mins[2] = p2[2];if (maxs[2] < p2[2]) maxs[2] = p2[2];
- }
- if (mins[0] < clipmaxs[0] && maxs[0] > clipmins[0]
- && mins[1] < clipmaxs[1] && maxs[1] > clipmins[1]
- && mins[2] < clipmaxs[2] && maxs[2] > clipmins[2]
- && !LightAndVis_CullBox(mins, maxs))
- {
- Matrix4x4_Transform(&ent->inversematrix, lightorigin, relativelightorigin);
- ent->model->DrawShadowVolume (ent, relativelightorigin, lightradius);
- }
- }
- }
- }
-}
-
-void R_Shadow_DrawWorldLightShadowVolume(matrix4x4_t *matrix, worldlight_t *light);
-
-#define SHADOWSPHERE_SEGMENTS 16
-
-shadowmesh_t *shadowsphere;
-void R_CreateShadowSphere(void)
-{
- int i, j;
- vec3_t angles, angles2, angles3, angles4;
- float verts[12];
- shadowsphere = Mod_ShadowMesh_Begin(zonemempool, SHADOWSPHERE_SEGMENTS * SHADOWSPHERE_SEGMENTS / 2);
- for (i = 0;i < SHADOWSPHERE_SEGMENTS / 2;i++)
- {
- for (j = 0;j < SHADOWSPHERE_SEGMENTS;j++)
- {
- angles[0] = (i * 360.0f / SHADOWSPHERE_SEGMENTS) + 90.0f;
- angles[1] = j * 360.0f / SHADOWSPHERE_SEGMENTS;
- angles[2] = 0;
- VectorCopy(angles, angles2);
- VectorCopy(angles, angles3);
- VectorCopy(angles, angles4);
- angles2[1] += 360.0f / SHADOWSPHERE_SEGMENTS;
- angles3[0] += 360.0f / SHADOWSPHERE_SEGMENTS;
- angles3[1] += 360.0f / SHADOWSPHERE_SEGMENTS;
- angles4[0] += 360.0f / SHADOWSPHERE_SEGMENTS;
- AngleVectorsFLU(angles, verts, NULL, NULL);
- AngleVectorsFLU(angles2, verts + 9, NULL, NULL);
- AngleVectorsFLU(angles3, verts + 6, NULL, NULL);
- AngleVectorsFLU(angles4, verts + 3, NULL, NULL);
- VectorScale(&verts[0], 1.0f, &verts[0]);
- VectorScale(&verts[3], 1.0f, &verts[3]);
- VectorScale(&verts[6], 1.0f, &verts[6]);
- VectorScale(&verts[9], 1.0f, &verts[9]);
- Mod_ShadowMesh_AddPolygon(zonemempool, shadowsphere, 4, verts);
- }
- }
- shadowsphere = Mod_ShadowMesh_Finish(zonemempool, shadowsphere);
-}
-
-
-void R_DrawShadowSphere(vec3_t origin, float cullradius, float lightradius)
-{
- shadowmesh_t *mesh;
- matrix4x4_t matrix;
- if (!shadowsphere)
- R_CreateShadowSphere();
- Matrix4x4_CreateScale(&matrix, lightradius);
- Matrix4x4_ConcatTranslate(&matrix, origin[0], origin[1], origin[2]);
- R_Mesh_Matrix(&matrix);
- for (mesh = shadowsphere;mesh;mesh = mesh->next)
- {
- memcpy(varray_vertex, mesh->verts, mesh->numverts * sizeof(float[4]));
- R_Shadow_RenderVolume(mesh->numverts, mesh->numtriangles, mesh->elements);
- }
- Matrix4x4_CreateScale(&matrix, -cullradius);
- Matrix4x4_ConcatTranslate(&matrix, origin[0], origin[1], origin[2]);
- R_Mesh_Matrix(&matrix);
- for (mesh = shadowsphere;mesh;mesh = mesh->next)
- {
- memcpy(varray_vertex, mesh->verts, mesh->numverts * sizeof(float[4]));
- R_Shadow_RenderVolume(mesh->numverts, mesh->numtriangles, mesh->elements);
- }
-}
-
-extern void R_Model_Brush_DrawLightForSurfaceList(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, msurface_t **surflist, int numsurfaces);
-void R_ShadowVolumeLighting (int visiblevolumes)
-{
- int i;
- entity_render_t *ent;
- int lnum;
- float f, lightradius, cullradius;
- vec3_t relativelightorigin, relativeeyeorigin, lightcolor, clipmins, clipmaxs;
- worldlight_t *wl;
- //mlight_t *sl;
- rdlight_t *rd;
- rmeshstate_t m;
- mleaf_t *leaf;
-
- if (visiblevolumes)
- {
- memset(&m, 0, sizeof(m));
- m.blendfunc1 = GL_ONE;
- m.blendfunc2 = GL_ONE;
- R_Mesh_State(&m);
- GL_Color(0.0 * r_colorscale, 0.0125 * r_colorscale, 0.1 * r_colorscale, 1);
- }
- else
- R_Shadow_Stage_Begin();
- shadowframecount++;
- for (lnum = 0, wl = r_shadow_worldlightchain;wl;wl = wl->next, lnum++)
- {
- if (d_lightstylevalue[wl->style] <= 0)
- continue;
- cullradius = wl->cullradius;
- lightradius = wl->lightradius;
- if (R_CullSphere(wl->origin, lightradius))
- continue;
- //if (R_CullBox(wl->mins, wl->maxs) || R_CullSphere(wl->origin, lightradius))
- // continue;
- //if (VIS_CullBox(wl->mins, wl->maxs) || VIS_CullSphere(wl->origin, lightradius))
- // continue;
- if (r_shadow_debuglight.integer >= 0 && lnum != r_shadow_debuglight.integer)
- continue;
-
- for (i = 0;i < wl->numleafs;i++)
- if (wl->leafs[i]->visframe == r_framecount)
- break;
- if (i == wl->numleafs)
- continue;
- leaf = wl->leafs[i];
- VectorCopy(leaf->mins, clipmins);
- VectorCopy(leaf->maxs, clipmaxs);
- for (i = 0;i < wl->numleafs;i++)
- {
- leaf = wl->leafs[i];
- if (leaf->visframe == r_framecount)
- {
- if (clipmins[0] > leaf->mins[0]) clipmins[0] = leaf->mins[0];
- if (clipmaxs[0] < leaf->maxs[0]) clipmaxs[0] = leaf->maxs[0];
- if (clipmins[1] > leaf->mins[1]) clipmins[1] = leaf->mins[1];
- if (clipmaxs[1] < leaf->maxs[1]) clipmaxs[1] = leaf->maxs[1];
- if (clipmins[2] > leaf->mins[2]) clipmins[2] = leaf->mins[2];
- if (clipmaxs[2] < leaf->maxs[2]) clipmaxs[2] = leaf->maxs[2];
- }
- }
- if (clipmins[0] < wl->mins[0]) clipmins[0] = wl->mins[0];
- if (clipmins[1] < wl->mins[1]) clipmins[1] = wl->mins[1];
- if (clipmins[2] < wl->mins[2]) clipmins[2] = wl->mins[2];
- if (clipmaxs[0] > wl->maxs[0]) clipmaxs[0] = wl->maxs[0];
- if (clipmaxs[1] > wl->maxs[1]) clipmaxs[1] = wl->maxs[1];
- if (clipmaxs[2] > wl->maxs[2]) clipmaxs[2] = wl->maxs[2];
-
- if (R_Shadow_ScissorForBBoxAndSphere(clipmins, clipmaxs, wl->origin, wl->cullradius))
- continue;
-
- // mark the leafs we care about so only things in those leafs will matter
- for (i = 0;i < wl->numleafs;i++)
- wl->leafs[i]->worldnodeframe = shadowframecount;
-
-
- f = d_lightstylevalue[wl->style] * (1.0f / 256.0f);
- VectorScale(wl->light, f, lightcolor);
- if (wl->selected)
- {
- f = 2 + sin(realtime * M_PI * 4.0);
- VectorScale(lightcolor, f, lightcolor);
- }
-
- if (!visiblevolumes)
- R_Shadow_Stage_ShadowVolumes();
- if (wl->shadowvolume && r_staticworldlights.integer)
- R_Shadow_DrawWorldLightShadowVolume(&cl_entities[0].render.matrix, wl);
- else
- R_TestAndDrawShadowVolume(&cl_entities[0].render, wl->origin, cullradius, lightradius, clipmins, clipmaxs);
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent->maxs[0] >= wl->mins[0] && ent->mins[0] <= wl->maxs[0]
- && ent->maxs[1] >= wl->mins[1] && ent->mins[1] <= wl->maxs[1]
- && ent->maxs[2] >= wl->mins[2] && ent->mins[2] <= wl->maxs[2]
- && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- R_TestAndDrawShadowVolume(r_refdef.entities[i], wl->origin, cullradius, lightradius, clipmins, clipmaxs);
- }
- }
-
- if (!visiblevolumes)
- {
- R_Shadow_Stage_Light();
- ent = &cl_entities[0].render;
- if (ent->model && ent->model->DrawLight)
- {
- Matrix4x4_Transform(&ent->inversematrix, wl->origin, relativelightorigin);
- Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
- if (wl->numsurfaces)
- R_Model_Brush_DrawLightForSurfaceList(ent, relativelightorigin, relativeeyeorigin, lightradius, lightcolor, wl->surfaces, wl->numsurfaces);
- else
- ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, lightradius, lightcolor);
- }
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent->visframe == r_framecount && ent->model && ent->model->DrawLight
- && ent->maxs[0] >= wl->mins[0] && ent->mins[0] <= wl->maxs[0]
- && ent->maxs[1] >= wl->mins[1] && ent->mins[1] <= wl->maxs[1]
- && ent->maxs[2] >= wl->mins[2] && ent->mins[2] <= wl->maxs[2]
- && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- {
- Matrix4x4_Transform(&ent->inversematrix, wl->origin, relativelightorigin);
- Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
- ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, lightradius, lightcolor);
- }
- }
- }
-
- if (R_Shadow_Stage_EraseShadowVolumes())
- {
- if (wl->shadowvolume && r_staticworldlights.integer)
- R_Shadow_DrawWorldLightShadowVolume(&cl_entities[0].render.matrix, wl);
- else
- R_TestAndDrawShadowVolume(&cl_entities[0].render, wl->origin, cullradius, lightradius, clipmins, clipmaxs);
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent->maxs[0] >= wl->mins[0] && ent->mins[0] <= wl->maxs[0]
- && ent->maxs[1] >= wl->mins[1] && ent->mins[1] <= wl->maxs[1]
- && ent->maxs[2] >= wl->mins[2] && ent->mins[2] <= wl->maxs[2]
- && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- R_TestAndDrawShadowVolume(r_refdef.entities[i], wl->origin, cullradius, lightradius, clipmins, clipmaxs);
- }
- }
- }
- }
- }
- /*
- for (lnum = 0, sl = cl.worldmodel->lights;lnum < cl.worldmodel->numlights;lnum++, sl++)
- {
- if (d_lightstylevalue[sl->style] <= 0)
- continue;
- if (r_shadow_debuglight.integer >= 0 && lnum != r_shadow_debuglight.integer)
- continue;
- cullradius = sl->cullradius;
- lightradius = sl->lightradius;
- if (VIS_CullBox(sl->mins, sl->maxs) || VIS_CullSphere(sl->origin, lightradius))
- continue;
-
- f = d_lightstylevalue[sl->style] * (1.0f / 32768.0f);
- VectorScale(sl->light, f, lightcolor);
-
- if (!visiblevolumes)
- R_Shadow_Stage_ShadowVolumes();
- if (sl->shadowvolume && r_staticworldlights.integer)
- R_DrawWorldLightShadowVolume(&cl_entities[0].render.matrix, sl->shadowvolume);
- else
- R_TestAndDrawShadowVolume(&cl_entities[0].render, sl->origin, cullradius, lightradius);
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent->maxs[0] >= sl->mins[0] && ent->mins[0] <= sl->maxs[0]
- && ent->maxs[1] >= sl->mins[1] && ent->mins[1] <= sl->maxs[1]
- && ent->maxs[2] >= sl->mins[2] && ent->mins[2] <= sl->maxs[2]
- && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- R_TestAndDrawShadowVolume(r_refdef.entities[i], sl->origin, cullradius, lightradius);
- }
- }
-
- if (!visiblevolumes)
- {
- R_Shadow_Stage_Light();
- ent = &cl_entities[0].render;
- if (ent->model && ent->model->DrawLight)
- {
- Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
- Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
- ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, lightradius, sl->distbias, sl->subtract, lightcolor);
- }
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent->visframe == r_framecount && ent->model && ent->model->DrawLight
- && ent->maxs[0] >= sl->mins[0] && ent->mins[0] <= sl->maxs[0]
- && ent->maxs[1] >= sl->mins[1] && ent->mins[1] <= sl->maxs[1]
- && ent->maxs[2] >= sl->mins[2] && ent->mins[2] <= sl->maxs[2]
- && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- {
- Matrix4x4_Transform(&ent->inversematrix, sl->origin, relativelightorigin);
- Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
- ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, lightradius, sl->distbias, sl->subtract, lightcolor);
- }
- }
- }
-
- R_Shadow_Stage_EraseShadowVolumes();
- if (sl->shadowvolume && r_staticworldlights.integer)
- R_DrawWorldLightShadowVolume(&cl_entities[0].render.matrix, sl->shadowvolume);
- else
- R_TestAndDrawShadowVolume(&cl_entities[0].render, sl->origin, cullradius, lightradius);
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent->maxs[0] >= sl->mins[0] && ent->mins[0] <= sl->maxs[0]
- && ent->maxs[1] >= sl->mins[1] && ent->mins[1] <= sl->maxs[1]
- && ent->maxs[2] >= sl->mins[2] && ent->mins[2] <= sl->maxs[2]
- && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- R_TestAndDrawShadowVolume(r_refdef.entities[i], sl->origin, cullradius, lightradius);
- }
- }
- }
- }
- */
- for (lnum = 0, rd = r_dlight;lnum < r_numdlights;lnum++, rd++)
- {
- cullradius = rd->cullradius;
- lightradius = rd->cullradius;
- if (VIS_CullSphere(rd->origin, lightradius))
- continue;
-
- VectorScale(rd->light, (1.0f / 8192.0f), lightcolor);
- clipmins[0] = rd->origin[0] - cullradius;
- clipmins[1] = rd->origin[1] - cullradius;
- clipmins[2] = rd->origin[2] - cullradius;
- clipmaxs[0] = rd->origin[0] + cullradius;
- clipmaxs[1] = rd->origin[1] + cullradius;
- clipmaxs[2] = rd->origin[2] + cullradius;
-
- if (R_Shadow_ScissorForBBoxAndSphere(clipmins, clipmaxs, rd->origin, rd->cullradius))
- continue;
-
- if (!visiblevolumes)
- R_Shadow_Stage_ShadowVolumes();
- R_TestAndDrawShadowVolume(&cl_entities[0].render, rd->origin, cullradius, lightradius, clipmins, clipmaxs);
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent != rd->ent && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- R_TestAndDrawShadowVolume(ent, rd->origin, cullradius, lightradius, clipmins, clipmaxs);
- }
- }
-
- if (!visiblevolumes)
- {
- R_Shadow_Stage_Light();
- ent = &cl_entities[0].render;
- if (ent->model && ent->model->DrawLight)
- {
- Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
- Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
- ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, lightradius, lightcolor);
- }
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent->visframe == r_framecount && ent->model && ent->model->DrawLight
- && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- {
- Matrix4x4_Transform(&ent->inversematrix, rd->origin, relativelightorigin);
- Matrix4x4_Transform(&ent->inversematrix, r_origin, relativeeyeorigin);
- ent->model->DrawLight(ent, relativelightorigin, relativeeyeorigin, lightradius, lightcolor);
- }
- }
- }
-
- if (R_Shadow_Stage_EraseShadowVolumes())
- {
- R_TestAndDrawShadowVolume(&cl_entities[0].render, rd->origin, cullradius, lightradius, clipmins, clipmaxs);
- if (r_drawentities.integer)
- {
- for (i = 0;i < r_refdef.numentities;i++)
- {
- ent = r_refdef.entities[i];
- if (ent != rd->ent && !(ent->effects & EF_ADDITIVE) && ent->alpha == 1)
- R_TestAndDrawShadowVolume(ent, rd->origin, cullradius, lightradius, clipmins, clipmaxs);
- }
- }
- }
- }
- }
-
- if (!visiblevolumes)
- R_Shadow_Stage_End();
- qglDisable(GL_SCISSOR_TEST);
-}
-
-static void R_SetFrustum (void)
-{
- int i;