int R_Shadow_ConstructShadowVolume(int innumvertices, int innumtris, const int *inelement3i, const int *inneighbor3i, const float *invertex3f, int *outnumvertices, int *outelement3i, float *outvertex3f, const float *projectorigin, float projectdistance, int numshadowmarktris, const int *shadowmarktris)
{
int i, j, tris = 0, vr[3], t, outvertices = 0;
- const int *e, *n;
float f, temp[3];
+ const int *e, *n;
+ const float *v;
if (maxvertexupdate < innumvertices)
{
memset(vertexremap, 0, maxvertexupdate * sizeof(int));
}
+ for (i = 0;i < numshadowmarktris;i++)
+ shadowmark[shadowmarktris[i]] = shadowmarkcount;
+
for (i = 0;i < numshadowmarktris;i++)
{
t = shadowmarktris[i];
- shadowmark[t] = shadowmarkcount;
e = inelement3i + t * 3;
// make sure the vertices are created
for (j = 0;j < 3;j++)
{
vertexupdate[e[j]] = vertexupdatenum;
vertexremap[e[j]] = outvertices;
- VectorSubtract(invertex3f + e[j] * 3, projectorigin, temp);
+ v = invertex3f + e[j] * 3;
+ // project one copy of the vertex to the sphere radius of the light
+ // (FIXME: would projecting it to the light box be better?)
+ VectorSubtract(v, projectorigin, temp);
f = projectdistance / VectorLength(temp);
- VectorCopy(invertex3f + e[j] * 3, outvertex3f);
+ VectorCopy(v, outvertex3f);
VectorMA(projectorigin, f, temp, (outvertex3f + 3));
outvertex3f += 6;
outvertices += 2;
}
}
+ }
+
+ for (i = 0;i < numshadowmarktris;i++)
+ {
+ t = shadowmarktris[i];
+ e = inelement3i + t * 3;
+ n = inneighbor3i + t * 3;
// output the front and back triangles
outelement3i[0] = vertexremap[e[0]];
outelement3i[1] = vertexremap[e[1]];
outelement3i[5] = vertexremap[e[0]] + 1;
outelement3i += 6;
tris += 2;
- }
-
- for (i = 0;i < numshadowmarktris;i++)
- {
- t = shadowmarktris[i];
- e = inelement3i + t * 3;
- n = inneighbor3i + t * 3;
// output the sides (facing outward from this triangle)
if (shadowmark[n[0]] != shadowmarkcount)
{
R_Shadow_RenderVolume(outverts, tris, varray_vertex3f2, shadowelements);
}
-void R_Shadow_VolumeFromBox(int numverts, int numtris, const float *invertex3f, const int *elements, const int *neighbors, const vec3_t projectorigin, float projectdistance, const vec3_t mins, const vec3_t maxs)
+void R_Shadow_MarkVolumeFromBox(int firsttriangle, int numtris, const float *invertex3f, const int *elements, const vec3_t projectorigin, vec3_t lightmins, vec3_t lightmaxs, vec3_t surfacemins, vec3_t surfacemaxs)
{
- int i;
+ int t, tend;
+ const int *e;
const float *v[3];
-
- // check which triangles are facing the , and then output
- // triangle elements and vertices... by clever use of elements we
- // can construct the whole shadow from the unprojected vertices and
- // the projected vertices
-
- // identify lit faces within the bounding box
- R_Shadow_PrepareShadowMark(numtris);
- for (i = 0;i < numtris;i++)
+ if (!BoxesOverlap(lightmins, lightmaxs, surfacemins, surfacemaxs))
+ return;
+ tend = firsttriangle + numtris;
+ if (surfacemins[0] >= lightmins[0] && surfacemaxs[0] <= lightmaxs[0]
+ && surfacemins[1] >= lightmins[1] && surfacemaxs[1] <= lightmaxs[1]
+ && surfacemins[2] >= lightmins[2] && surfacemaxs[2] <= lightmaxs[2])
{
- v[0] = invertex3f + elements[i*3+0] * 3;
- v[1] = invertex3f + elements[i*3+1] * 3;
- v[2] = invertex3f + elements[i*3+2] * 3;
- if (PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2]) && maxs[0] > min(v[0][0], min(v[1][0], v[2][0])) && mins[0] < max(v[0][0], max(v[1][0], v[2][0])) && maxs[1] > min(v[0][1], min(v[1][1], v[2][1])) && mins[1] < max(v[0][1], max(v[1][1], v[2][1])) && maxs[2] > min(v[0][2], min(v[1][2], v[2][2])) && mins[2] < max(v[0][2], max(v[1][2], v[2][2])))
- shadowmarklist[numshadowmark++] = i;
+ // surface box entirely inside light box, no box cull
+ for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
+ if (PointInfrontOfTriangle(projectorigin, invertex3f + e[0] * 3, invertex3f + e[1] * 3, invertex3f + e[2] * 3))
+ shadowmarklist[numshadowmark++] = t;
+ }
+ else
+ {
+ // surface box not entirely inside light box, cull each triangle
+ for (t = firsttriangle, e = elements + t * 3;t < tend;t++, e += 3)
+ {
+ v[0] = invertex3f + e[0] * 3;
+ v[1] = invertex3f + e[1] * 3;
+ v[2] = invertex3f + e[2] * 3;
+ if (PointInfrontOfTriangle(projectorigin, v[0], v[1], v[2])
+ && lightmaxs[0] > min(v[0][0], min(v[1][0], v[2][0]))
+ && lightmins[0] < max(v[0][0], max(v[1][0], v[2][0]))
+ && lightmaxs[1] > min(v[0][1], min(v[1][1], v[2][1]))
+ && lightmins[1] < max(v[0][1], max(v[1][1], v[2][1]))
+ && lightmaxs[2] > min(v[0][2], min(v[1][2], v[2][2]))
+ && lightmins[2] < max(v[0][2], max(v[1][2], v[2][2])))
+ shadowmarklist[numshadowmark++] = t;
+ }
}
- R_Shadow_VolumeFromList(numverts, numtris, invertex3f, elements, neighbors, projectorigin, projectdistance, numshadowmark, shadowmarklist);
-}
-
-void R_Shadow_VolumeFromSphere(int numverts, int numtris, const float *invertex3f, const int *elements, const int *neighbors, const vec3_t projectorigin, float projectdistance, float radius)
-{
- vec3_t mins, maxs;
- mins[0] = projectorigin[0] - radius;
- mins[1] = projectorigin[1] - radius;
- mins[2] = projectorigin[2] - radius;
- maxs[0] = projectorigin[0] + radius;
- maxs[1] = projectorigin[1] + radius;
- maxs[2] = projectorigin[2] + radius;
- R_Shadow_VolumeFromBox(numverts, numtris, invertex3f, elements, neighbors, projectorigin, projectdistance, mins, maxs);
}
void R_Shadow_RenderVolume(int numvertices, int numtriangles, const float *vertex3f, const int *element3i)
lighttextures[i] = pic->tex;
}
- for (light = r_shadow_worldlightchain;light;light = light->next)
- R_MeshQueue_AddTransparent(light->origin, R_Shadow_DrawLightSpriteCallback, light, ((int) light) % 5);
+ for (i = 0, light = r_shadow_worldlightchain;light;i++, light = light->next)
+ R_MeshQueue_AddTransparent(light->origin, R_Shadow_DrawLightSpriteCallback, light, i % 5);
R_MeshQueue_AddTransparent(r_editlights_cursorlocation, R_Shadow_DrawCursorCallback, NULL, 0);
}
buf = NULL;
for (light = r_shadow_worldlightchain;light;light = light->next)
{
- sprintf(line, "%s%f %f %f %f %f %f %f %d %s %f %f %f %f\n", light->shadow ? "" : "!", light->origin[0], light->origin[1], light->origin[2], light->radius / r_editlights_rtlightssizescale.value, light->color[0] / r_editlights_rtlightscolorscale.value, light->color[1] / r_editlights_rtlightscolorscale.value, light->color[2] / r_editlights_rtlightscolorscale.value, light->style, light->cubemapname[0] ? light->cubemapname : "\"\"", light->corona, light->angles[0], light->angles[1], light->angles[2]);
+ if (light->cubemapname[0] || light->corona || light->angles[0] || light->angles[1] || light->angles[2])
+ sprintf(line, "%s%f %f %f %f %f %f %f %d \"%s\" %f %f %f %f\n", light->shadow ? "" : "!", light->origin[0], light->origin[1], light->origin[2], light->radius / r_editlights_rtlightssizescale.value, light->color[0] / r_editlights_rtlightscolorscale.value, light->color[1] / r_editlights_rtlightscolorscale.value, light->color[2] / r_editlights_rtlightscolorscale.value, light->style, light->cubemapname, light->corona, light->angles[0], light->angles[1], light->angles[2]);
+ else
+ sprintf(line, "%s%f %f %f %f %f %f %f %d\n", light->shadow ? "" : "!", light->origin[0], light->origin[1], light->origin[2], light->radius / r_editlights_rtlightssizescale.value, light->color[0] / r_editlights_rtlightscolorscale.value, light->color[1] / r_editlights_rtlightscolorscale.value, light->color[2] / r_editlights_rtlightscolorscale.value, light->style);
if (bufchars + (int) strlen(line) > bufmaxchars)
{
bufmaxchars = bufchars + strlen(line) + 2048;
projects / xonotic / darkplaces.git / blobdiff