5 #define MAX_TEXTUREUNITS 8
7 extern int c_meshtris, c_meshs;
11 //input to R_Mesh_Draw_GetBuffer
12 int depthwrite; // force depth writing enabled even if polygon is not opaque
13 int depthdisable; // disable depth read/write entirely
17 int tex[MAX_TEXTUREUNITS];
18 int texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
22 // overbright rendering scale for the current state
23 extern float mesh_colorscale;
24 extern int *varray_element;
25 extern float *varray_vertex;
26 extern float *varray_color;
27 extern float *varray_texcoord[MAX_TEXTUREUNITS];
28 extern int mesh_maxverts;
29 extern int mesh_maxtris;
31 // adds console variables and registers the render module (only call from GL_Init)
32 void gl_backend_init(void);
34 // starts mesh rendering for the frame
35 void R_Mesh_Start(float farclip);
37 // ends mesh rendering for the frame
38 // (only valid after R_Mesh_Start)
39 void R_Mesh_Finish(void);
41 // clears depth buffer, used for masked sky rendering
42 // (only valid between R_Mesh_Start and R_Mesh_Finish)
43 void R_Mesh_ClearDepth(void);
45 // sets up the requested transform matrix
46 void R_Mesh_Matrix(const matrix4x4_t *matrix);
48 // sets up the requested state
49 void R_Mesh_State(const rmeshstate_t *m);
51 // enlarges geometry buffers if they are too small
52 #define R_Mesh_ResizeCheck(numverts, numtriangles) if ((numverts) > mesh_maxverts || (numtriangles) > mesh_maxtris) _R_Mesh_ResizeCheck(numverts, numtriangles);
53 void _R_Mesh_ResizeCheck(int numverts, int numtriangles);
55 // renders the mesh in the varray_* buffers
56 void R_Mesh_Draw(int numverts, int numtriangles);
58 // saves a section of the rendered frame to a .tga file
59 qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height);
60 // used by R_Envmap_f and internally in backend, clears the frame
61 void R_ClearScreen(void);
62 // invoke refresh of frame
63 void SCR_UpdateScreen (void);