New shader keyword dptransparentsort (can be "sky", "distance", "hud") which forces...

[xonotic/darkplaces.git] / model_shared.c

diff --git a/model_shared.c b/model_shared.c
index 5d06edc5b869c07527550d466025646f4b7b02be..e49b1b10738a241ac09d2df486df78b249089eb7 100644 (file)
--- a/model_shared.c
+++ b/model_shared.c
@@ -1653,6 +1653,7 @@ 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;
+extern cvar_t mod_q3shader_force_terrain_alphaflag;
 void Mod_LoadQ3Shaders(void)
 {
        int j;
@@ -1747,6 +1748,7 @@ void Mod_LoadQ3Shaders(void)
                        shader.specularpowermod = 1;
                        shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
                        shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
+                       shader.transparentsort = TRANSPARENTSORT_DISTANCE;
 
                        strlcpy(shader.name, com_token, sizeof(shader.name));
                        if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
@@ -1999,6 +2001,8 @@ void Mod_LoadQ3Shaders(void)
                                                {
                                                        // multilayer terrain shader or similar
                                                        shader.textureblendalpha = true;
+                                                       if (mod_q3shader_force_terrain_alphaflag.integer)
+                                                               shader.layers[0].texflags |= TEXF_ALPHA;
                                                }
                                        }
 
@@ -2009,7 +2013,7 @@ void Mod_LoadQ3Shaders(void)
                                                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;
@@ -2245,6 +2249,18 @@ void Mod_LoadQ3Shaders(void)
                                                        shader.biaspolygonoffset = 0;
                                        }
                                }
+                               else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
+                               {
+                                       shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
+                                       if (!strcasecmp(parameter[1], "sky"))
+                                               shader.transparentsort = TRANSPARENTSORT_SKY;
+                                       else if (!strcasecmp(parameter[1], "distance"))
+                                               shader.transparentsort = TRANSPARENTSORT_DISTANCE;
+                                       else if (!strcasecmp(parameter[1], "hud"))
+                                               shader.transparentsort = TRANSPARENTSORT_HUD;
+                                       else
+                                               Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
+                               }
                                else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
                                {
                                        shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
@@ -2484,6 +2500,7 @@ qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qbool
                        texture->basematerialflags |= MATERIALFLAG_CAMERA;
                texture->customblendfunc[0] = GL_ONE;
                texture->customblendfunc[1] = GL_ZERO;
+               texture->transparentsort = shader->transparentsort;
                if (shader->numlayers > 0)
                {
                        texture->customblendfunc[0] = shader->layers[0].blendfunc[0];