cvar_t r_ambient = {0, "r_ambient", "0", "brightens map, value is 0-128"};
cvar_t r_lockpvs = {0, "r_lockpvs", "0", "disables pvs switching, allows you to walk around and inspect what is visible from a given location in the map (anything not visible from your current location will not be drawn)"};
cvar_t r_lockvisibility = {0, "r_lockvisibility", "0", "disables visibility updates, allows you to walk around and inspect what is visible from a given viewpoint in the map (anything offscreen at the moment this is enabled will not be drawn)"};
-cvar_t r_useportalculling = {0, "r_useportalculling", "1", "use advanced portal culling visibility method to improve performance over just Potentially Visible Set, provides an even more significant speed improvement in unvised maps"};
+cvar_t r_useportalculling = {0, "r_useportalculling", "1", "improve framerate with r_novis 1 by using portal culling - still not as good as compiled visibility data in the map, but it helps (a value of 2 forces use of this even with vis data, which improves framerates in maps without too much complexity, but hurts in extremely complex maps, which is why 2 is not the default mode)"};
cvar_t r_q3bsp_renderskydepth = {0, "r_q3bsp_renderskydepth", "0", "draws sky depth masking in q3 maps (as in q1 maps), this means for example that sky polygons can hide other things"};
/*
// scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
// be doubled during rendering to achieve 2x overbright
// (0 = 0.0, 128 = 1.0, 256 = 2.0)
- for (i = 0;i < size;i++, bl += 3, stain += 3, out += 4)
+ if (stain)
{
- l = (bl[0] * stain[0]) >> 16;out[2] = min(l, 255);
- l = (bl[1] * stain[1]) >> 16;out[1] = min(l, 255);
- l = (bl[2] * stain[2]) >> 16;out[0] = min(l, 255);
- out[3] = 255;
+ for (i = 0;i < size;i++, bl += 3, stain += 3, out += 4)
+ {
+ l = (bl[0] * stain[0]) >> 16;out[2] = min(l, 255);
+ l = (bl[1] * stain[1]) >> 16;out[1] = min(l, 255);
+ l = (bl[2] * stain[2]) >> 16;out[0] = min(l, 255);
+ out[3] = 255;
+ }
+ }
+ else
+ {
+ for (i = 0;i < size;i++, bl += 3, out += 4)
+ {
+ l = bl[0] >> 8;out[2] = min(l, 255);
+ l = bl[1] >> 8;out[1] = min(l, 255);
+ l = bl[2] >> 8;out[0] = min(l, 255);
+ out[3] = 255;
+ }
}
R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
}
}
}
- // if the user prefers to disable portal culling (testing?), simply
- // use all on-screen leafs that are in the pvs.
- else if (!r_useportalculling.integer)
+ // just check if each leaf in the PVS is on screen
+ // (unless portal culling is enabled)
+ else if (r_useportalculling.integer < 1 || (r_useportalculling.integer < 2 && !r_novis.integer))
{
// pvs method:
// simply check if each leaf is in the Potentially Visible Set,
}
}
}
- // otherwise use a recursive portal flow, culling each portal to
+ // if desired use a recursive portal flow, culling each portal to
// frustum and checking if the leaf the portal leads to is in the pvs
else
{