cvar_t mod_q3bsp_nolightmaps = {CVAR_CLIENT | CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
cvar_t mod_q3bsp_tracelineofsight_brushes = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
cvar_t mod_q3bsp_sRGBlightmaps = {CVAR_CLIENT, "mod_q3bsp_sRGBlightmaps", "0", "treat lightmaps from Q3 maps as sRGB when vid_sRGB is active"};
+cvar_t mod_q3bsp_lightgrid_texture = {CVAR_CLIENT, "mod_q3bsp_lightgrid_texture", "1", "directly apply the lightgrid as a global texture rather than only reading it at the entity origin"};
+cvar_t mod_q3bsp_lightgrid_world_surfaces = {CVAR_CLIENT, "mod_q3bsp_lightgrid_world_surfaces", "0", "apply lightgrid lighting to the world bsp geometry rather than using lightmaps (experimental/debug tool)"};
+cvar_t mod_q3bsp_lightgrid_bsp_surfaces = {CVAR_CLIENT, "mod_q3bsp_lightgrid_bsp_surfaces", "0", "apply lightgrid lighting to bsp models other than the world rather than using their lightmaps (experimental/debug tool)"};
cvar_t mod_q3shader_default_offsetmapping = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are using q3 shader files"};
cvar_t mod_q3shader_default_offsetmapping_scale = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping_scale", "1", "default scale used for offsetmapping"};
cvar_t mod_q3shader_default_offsetmapping_bias = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping_bias", "0", "default bias used for offsetmapping"};
Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
Cvar_RegisterVariable(&mod_q3bsp_sRGBlightmaps);
+ Cvar_RegisterVariable(&mod_q3bsp_lightgrid_texture);
+ Cvar_RegisterVariable(&mod_q3bsp_lightgrid_world_surfaces);
+ Cvar_RegisterVariable(&mod_q3bsp_lightgrid_bsp_surfaces);
Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping);
Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_scale);
q3dlightgrid_t *out;
int count;
int i;
+ int texturesize[3];
+ unsigned char *texturergba, *texturelayer[3], *texturepadding[2];
+ double lightgridmatrix[4][4];
in = (q3dlightgrid_t *)(mod_base + l->fileofs);
if (l->filelen % sizeof(*in))
// all is good
}
}
+
+ if (mod_q3bsp_lightgrid_texture.integer)
+ {
+ // build a texture to hold the data for per-pixel sampling
+ // this has 3 different kinds of data stacked in it:
+ // ambient color
+ // bent-normal light color
+ // bent-normal light dir
+ texturesize[0] = loadmodel->brushq3.num_lightgrid_isize[0];
+ texturesize[1] = loadmodel->brushq3.num_lightgrid_isize[1];
+ texturesize[2] = (loadmodel->brushq3.num_lightgrid_isize[2] + 2) * 3;
+ texturergba = (unsigned char*)Mem_Alloc(loadmodel->mempool, texturesize[0] * texturesize[1] * texturesize[2] * sizeof(char[4]));
+ texturelayer[0] = texturergba + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
+ texturelayer[1] = texturelayer[0] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
+ texturelayer[2] = texturelayer[1] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
+ // the light dir layer needs padding above/below it that is a neutral unsigned normal (127,127,127,255)
+ texturepadding[0] = texturelayer[2] - loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
+ texturepadding[1] = texturelayer[2] + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2] * 4;
+ for (i = 0; i < texturesize[0] * texturesize[1]; i++)
+ {
+ texturepadding[0][i * 4] = texturepadding[1][i * 4] = 127;
+ texturepadding[0][i * 4 + 1] = texturepadding[1][i * 4 + 1] = 127;
+ texturepadding[0][i * 4 + 2] = texturepadding[1][i * 4 + 2] = 127;
+ texturepadding[0][i * 4 + 3] = texturepadding[1][i * 4 + 3] = 255;
+ }
+ for (i = 0; i < count; i++)
+ {
+ texturelayer[0][i * 4 + 0] = out[i].ambientrgb[0];
+ texturelayer[0][i * 4 + 1] = out[i].ambientrgb[1];
+ texturelayer[0][i * 4 + 2] = out[i].ambientrgb[2];
+ texturelayer[0][i * 4 + 3] = 255;
+ texturelayer[1][i * 4 + 0] = out[i].diffusergb[0];
+ texturelayer[1][i * 4 + 1] = out[i].diffusergb[1];
+ texturelayer[1][i * 4 + 2] = out[i].diffusergb[2];
+ texturelayer[1][i * 4 + 3] = 255;
+ // this uses the mod_md3_sin table because the values are
+ // already in the 0-255 range, the 64+ bias fetches a cosine
+ // instead of a sine value
+ texturelayer[2][i * 4 + 0] = (char)((mod_md3_sin[64 + out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
+ texturelayer[2][i * 4 + 1] = (char)((mod_md3_sin[out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
+ texturelayer[2][i * 4 + 2] = (char)((mod_md3_sin[64 + out[i].diffusepitch]) * 127 + 127);
+ texturelayer[2][i * 4 + 3] = 255;
+ }
+#if 0
+ // debugging hack
+ int x, y, z;
+ for (z = 0; z < loadmodel->brushq3.num_lightgrid_isize[2]; z++)
+ {
+ for (y = 0; y < loadmodel->brushq3.num_lightgrid_isize[1]; y++)
+ {
+ for (x = 0; x < loadmodel->brushq3.num_lightgrid_isize[0]; x++)
+ {
+ i = (z * texturesize[1] + y) * texturesize[0] + x;
+ texturelayer[0][i * 4 + 0] = x * 256 / loadmodel->brushq3.num_lightgrid_isize[0];
+ texturelayer[0][i * 4 + 1] = y * 256 / loadmodel->brushq3.num_lightgrid_isize[1];
+ texturelayer[0][i * 4 + 2] = z * 256 / loadmodel->brushq3.num_lightgrid_isize[2];
+ }
+ }
+ }
+#endif
+ loadmodel->brushq3.lightgridtexturesize[0] = texturesize[0];
+ loadmodel->brushq3.lightgridtexturesize[1] = texturesize[1];
+ loadmodel->brushq3.lightgridtexturesize[2] = texturesize[2];
+ memset(lightgridmatrix[0], 0, sizeof(lightgridmatrix));
+ lightgridmatrix[0][0] = loadmodel->brushq3.num_lightgrid_scale[0] / texturesize[0];
+ lightgridmatrix[1][1] = loadmodel->brushq3.num_lightgrid_scale[1] / texturesize[1];
+ lightgridmatrix[2][2] = loadmodel->brushq3.num_lightgrid_scale[2] / texturesize[2];
+ lightgridmatrix[0][3] = -(loadmodel->brushq3.num_lightgrid_imins[0] - 0.5f) / texturesize[0];
+ lightgridmatrix[1][3] = -(loadmodel->brushq3.num_lightgrid_imins[1] - 0.5f) / texturesize[1];
+ lightgridmatrix[2][3] = -(loadmodel->brushq3.num_lightgrid_imins[2] - 1.5f) / texturesize[2];
+ lightgridmatrix[3][3] = 1;
+ Matrix4x4_FromArrayDoubleD3D(&loadmodel->brushq3.lightgridworldtotexturematrix, lightgridmatrix[0]);
+ loadmodel->brushq3.lightgridtexture = R_LoadTexture3D(loadmodel->texturepool, "lightgrid", texturesize[0], texturesize[1], texturesize[2], texturergba, TEXTYPE_RGBA, TEXF_CLAMP, 0, NULL);
+ Mem_Free(texturergba);
+ }
}
}
projects / xonotic / darkplaces.git / blobdiff