extern cvar_t mod_noshader_default_offsetmapping;
extern cvar_t mod_q3shader_default_offsetmapping;
+extern cvar_t mod_q3shader_default_offsetmapping_scale;
extern cvar_t mod_q3shader_default_offsetmapping_bias;
extern cvar_t mod_q3shader_default_polygonoffset;
extern cvar_t mod_q3shader_default_polygonfactor;
+extern cvar_t mod_q3shader_force_addalpha;
void Mod_LoadQ3Shaders(void)
{
int j;
Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
shader.r_water_wateralpha = 1;
shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
- shader.offsetscale = 1;
- shader.offsetbias = bound(0, mod_q3shader_default_offsetmapping_bias.integer, 255);
+ shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
+ shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
shader.specularscalemod = 1;
shader.specularpowermod = 1;
shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
layer->blendfunc[0] = GL_ONE;
layer->blendfunc[1] = GL_ONE;
}
+ else if (!strcasecmp(parameter[1], "addalpha"))
+ {
+ layer->blendfunc[0] = GL_SRC_ALPHA;
+ layer->blendfunc[1] = GL_ONE;
+ }
else if (!strcasecmp(parameter[1], "filter"))
{
layer->blendfunc[0] = GL_DST_COLOR;
else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
layer->blendfunc[k] = GL_DST_COLOR;
else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
- layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
+ layer->blendfunc[k] = GL_DST_ALPHA;
else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
shader.textureblendalpha = true;
}
}
- layer->texflags = TEXF_ALPHA;
+
+ if(mod_q3shader_force_addalpha.integer)
+ {
+ // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
+ // this cvar brings back this behaviour
+ if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
+ layer->blendfunc[0] = GL_SRC_ALPHA;
+ }
+
+ layer->texflags = 0;
+ if (layer->alphatest)
+ layer->texflags |= TEXF_ALPHA;
+ switch(layer->blendfunc[0])
+ {
+ case GL_SRC_ALPHA:
+ case GL_ONE_MINUS_SRC_ALPHA:
+ layer->texflags |= TEXF_ALPHA;
+ break;
+ }
+ switch(layer->blendfunc[1])
+ {
+ case GL_SRC_ALPHA:
+ case GL_ONE_MINUS_SRC_ALPHA:
+ layer->texflags |= TEXF_ALPHA;
+ break;
+ }
if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
layer->texflags |= TEXF_MIPMAP;
if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
shader.offsetmapping = OFFSETMAPPING_RELIEF;
if (numparameters >= 3)
shader.offsetscale = atof(parameter[2]);
- if (numparameters >= 4)
- shader.offsetbias = bound(0, atoi(parameter[3]), 255);
+ if (numparameters >= 5)
+ {
+ if(!strcasecmp(parameter[3], "bias"))
+ shader.offsetbias = atof(parameter[4]);
+ else if(!strcasecmp(parameter[3], "match"))
+ shader.offsetbias = 1.0f - atof(parameter[4]);
+ else if(!strcasecmp(parameter[3], "match8"))
+ shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
+ else if(!strcasecmp(parameter[3], "match16"))
+ shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
+ }
}
else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
{