-
-struct entity_render_s;
-struct texture_s;
-struct msurface_s;
-
-typedef struct texture_s
-{
- // q1bsp
- // name
- //char name[16];
- // size
- unsigned int width, height;
- // SURF_ flags
- //unsigned int flags;
-
- // base material flags
- int basematerialflags;
- // current material flags (updated each bmodel render)
- int currentmaterialflags;
-
- // loaded the same as model skins
- skinframe_t skin;
-
- // total frames in sequence and alternate sequence
- int anim_total[2];
- // direct pointers to each of the frames in the sequences
- // (indexed as [alternate][frame])
- struct texture_s *anim_frames[2][10];
- // set if animated or there is an alternate frame set
- // (this is an optimization in the renderer)
- int animated;
- // the current texture frame in animation
- struct texture_s *currentframe;
- // current alpha of the texture
- float currentalpha;
-
- // q3bsp
- char name[Q3PATHLENGTH];
- char firstpasstexturename[Q3PATHLENGTH]; // used only during loading
- int surfaceflags;
- int supercontents;
- int surfaceparms;
- int textureflags;
-
- //skinframe_t skin;
-}
-texture_t;
-
-typedef struct
+// use alpha test on this material
+#define MATERIALFLAG_ALPHATEST 2048
+// treat this material as a blended transparency (as opposed to an alpha test
+// transparency), this causes special fog behavior, and disables glDepthMask
+#define MATERIALFLAG_BLENDED 4096
+// render using a custom blendfunc
+#define MATERIALFLAG_CUSTOMBLEND 8192
+// do not cast shadows from this material
+#define MATERIALFLAG_NOSHADOW 16384
+// render using vertex alpha (q3bsp) as texture blend parameter between foreground (normal) skinframe and background skinframe
+#define MATERIALFLAG_VERTEXTEXTUREBLEND 32768
+// disables GL_CULL_FACE on this texture (making it double sided)
+#define MATERIALFLAG_NOCULLFACE 65536
+// render with a very short depth range (like 10% of normal), this causes entities to appear infront of most of the scene
+#define MATERIALFLAG_SHORTDEPTHRANGE 131072
+// render water, comprising refraction and reflection (note: this is always opaque, the shader does the alpha effect)
+#define MATERIALFLAG_WATERSHADER 262144
+// render refraction (note: this is just a way to distort the background, otherwise useless)
+#define MATERIALFLAG_REFRACTION 524288
+// render reflection
+#define MATERIALFLAG_REFLECTION 1048576
+// use model lighting on this material (q1bsp lightmap sampling or q3bsp lightgrid, implies FULLBRIGHT is false)
+#define MATERIALFLAG_MODELLIGHT 4194304
+// add directional model lighting to this material (q3bsp lightgrid only)
+#define MATERIALFLAG_MODELLIGHT_DIRECTIONAL 8388608
+// causes RSurf_GetCurrentTexture to leave alone certain fields
+#define MATERIALFLAG_CUSTOMSURFACE 16777216
+// causes MATERIALFLAG_BLENDED to render a depth pass before rendering, hiding backfaces and other hidden geometry
+#define MATERIALFLAG_TRANSDEPTH 33554432
+// combined mask of all attributes that require depth sorted rendering
+#define MATERIALFLAGMASK_DEPTHSORTED (MATERIALFLAG_BLENDED | MATERIALFLAG_NODEPTHTEST)
+// combined mask of all attributes that cause some sort of transparency
+#define MATERIALFLAGMASK_TRANSLUCENT (MATERIALFLAG_WATERALPHA | MATERIALFLAG_SKY | MATERIALFLAG_NODRAW | MATERIALFLAG_ALPHATEST | MATERIALFLAG_BLENDED | MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION)
+
+typedef struct medge_s