Support alpha textures in Quake if the name starts with '{'.

Note: this is actually a HLBSP feature, though:

Author: ericw on irc.anynet.org

diff --git a/gl_rmain.c b/gl_rmain.c
index 3d9686e0c7f851f0c5dada0cb014f14c935b7f81..099d0d42722f18cad7ca0206457f673b1c3aced3 100644 (file)
--- a/gl_rmain.c
+++ b/gl_rmain.c
@@ -3683,6 +3683,9 @@ skinframe_t *R_SkinFrame_LoadInternalQuake(const char *name, int textureflags, i
                featuresmask |= palette_featureflags[skindata[i]];
 
        skinframe->hasalpha = false;
+       // fence textures
+       if (name[0] == '{')
+               skinframe->hasalpha = true;
        skinframe->qhascolormapping = loadpantsandshirt && (featuresmask & (PALETTEFEATURE_PANTS | PALETTEFEATURE_SHIRT));
        skinframe->qgeneratenmap = r_shadow_bumpscale_basetexture.value > 0;
        skinframe->qgeneratemerged = true;
@@ -3739,7 +3742,10 @@ static void R_SkinFrame_GenerateTexturesFromQPixels(skinframe_t *skinframe, qboo
        if (skinframe->qgenerateglow)
        {
                skinframe->qgenerateglow = false;
-               skinframe->glow = R_LoadTexture2D(r_main_texturepool, va(vabuf, sizeof(vabuf), "%s_glow", skinframe->basename), width, height, skindata, vid.sRGB3D ? TEXTYPE_SRGB_PALETTE : TEXTYPE_PALETTE, skinframe->textureflags, -1, palette_bgra_onlyfullbrights); // glow
+               if (skinframe->hasalpha) // fence textures
+                       skinframe->glow = R_LoadTexture2D(r_main_texturepool, va(vabuf, sizeof(vabuf), "%s_glow", skinframe->basename), width, height, skindata, vid.sRGB3D ? TEXTYPE_SRGB_PALETTE : TEXTYPE_PALETTE, skinframe->textureflags | TEXF_ALPHA, -1, palette_bgra_onlyfullbrights_transparent); // glow
+               else
+                       skinframe->glow = R_LoadTexture2D(r_main_texturepool, va(vabuf, sizeof(vabuf), "%s_glow", skinframe->basename), width, height, skindata, vid.sRGB3D ? TEXTYPE_SRGB_PALETTE : TEXTYPE_PALETTE, skinframe->textureflags, -1, palette_bgra_onlyfullbrights); // glow
        }
 
        if (colormapped)
@@ -3752,7 +3758,10 @@ static void R_SkinFrame_GenerateTexturesFromQPixels(skinframe_t *skinframe, qboo
        else
        {
                skinframe->qgeneratemerged = false;
-               skinframe->merged = R_LoadTexture2D(r_main_texturepool, skinframe->basename, width, height, skindata, vid.sRGB3D ? TEXTYPE_SRGB_PALETTE : TEXTYPE_PALETTE, skinframe->textureflags, -1, skinframe->glow ? palette_bgra_nofullbrights : palette_bgra_complete);
+               if (skinframe->hasalpha) // fence textures
+                       skinframe->merged = R_LoadTexture2D(r_main_texturepool, skinframe->basename, width, height, skindata, vid.sRGB3D ? TEXTYPE_SRGB_PALETTE : TEXTYPE_PALETTE, skinframe->textureflags | TEXF_ALPHA, -1, skinframe->glow ? palette_bgra_nofullbrights_transparent : palette_bgra_transparent);
+               else
+                       skinframe->merged = R_LoadTexture2D(r_main_texturepool, skinframe->basename, width, height, skindata, vid.sRGB3D ? TEXTYPE_SRGB_PALETTE : TEXTYPE_PALETTE, skinframe->textureflags, -1, skinframe->glow ? palette_bgra_nofullbrights : palette_bgra_complete);
        }
 
        if (!skinframe->qgeneratemerged && !skinframe->qgeneratebase)

diff --git a/model_brush.c b/model_brush.c
index 66cb6d0bac5465db8c88bc4cedf14ac6fc99d7fa..f96ceca4a5591246bb8ede4c366cf7364d844c49 100644 (file)
--- a/model_brush.c
+++ b/model_brush.c
@@ -1880,6 +1880,10 @@ static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
                        if (tx->skinframes[0] && tx->skinframes[0]->hasalpha)
                                tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
                }
+               else if (tx->name[0] == '{') // fence textures
+               {
+                       tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
+               }
                else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
                {
                        // replace the texture with black

diff --git a/palette.c b/palette.c
index 7b6fb8d6bbc0b9bfb86e5b59bed5d7288731a5e6..8df19dabba2b6eab9b42e0a56b555917a22203f0 100644 (file)
--- a/palette.c
+++ b/palette.c
@@ -16,7 +16,9 @@ unsigned int palette_bgra_alpha[256];
 unsigned int palette_bgra_nocolormap[256];
 unsigned int palette_bgra_nocolormapnofullbrights[256];
 unsigned int palette_bgra_nofullbrights[256];
+unsigned int palette_bgra_nofullbrights_transparent[256];
 unsigned int palette_bgra_onlyfullbrights[256];
+unsigned int palette_bgra_onlyfullbrights_transparent[256];
 unsigned int palette_bgra_pantsaswhite[256];
 unsigned int palette_bgra_shirtaswhite[256];
 unsigned int palette_bgra_transparent[256];
@@ -133,11 +135,17 @@ static void Palette_SetupSpecialPalettes(void)
                palette_bgra_nofullbrights[i] = palette_bgra_complete[i];
        for (i = fullbright_start;i < fullbright_end;i++)
                palette_bgra_nofullbrights[i] = palette_bgra_complete[0];
+       for (i = 0;i < 256;i++)
+               palette_bgra_nofullbrights_transparent[i] = palette_bgra_nofullbrights[i];
+       palette_bgra_nofullbrights_transparent[transparentcolor] = 0;
 
        for (i = 0;i < 256;i++)
                palette_bgra_onlyfullbrights[i] = 0;
        for (i = fullbright_start;i < fullbright_end;i++)
                palette_bgra_onlyfullbrights[i] = palette_bgra_complete[i];
+       for (i = 0;i < 256;i++)
+               palette_bgra_onlyfullbrights_transparent[i] = palette_bgra_onlyfullbrights[i];
+       palette_bgra_onlyfullbrights_transparent[transparentcolor] = 0;
 
        for (i = 0;i < 256;i++)
                palette_bgra_nocolormapnofullbrights[i] = palette_bgra_complete[i];

diff --git a/palette.h b/palette.h
index 1b2cd2e77ca760879aeb4de67f88e4d1a682eab9..8658f128442514be1083dc22715235bfcb88c998 100644 (file)
--- a/palette.h
+++ b/palette.h
@@ -22,7 +22,9 @@ extern unsigned int palette_bgra_alpha[256];
 extern unsigned int palette_bgra_nocolormap[256];
 extern unsigned int palette_bgra_nocolormapnofullbrights[256];
 extern unsigned int palette_bgra_nofullbrights[256];
+extern unsigned int palette_bgra_nofullbrights_transparent[256];
 extern unsigned int palette_bgra_onlyfullbrights[256];
+extern unsigned int palette_bgra_onlyfullbrights_transparent[256];
 extern unsigned int palette_bgra_pantsaswhite[256];
 extern unsigned int palette_bgra_shirtaswhite[256];
 extern unsigned int palette_bgra_transparent[256];