r_sprites.c

   1 #include "quakedef.h"
   2
   3 void GL_DrawSpriteImage (mspriteframe_t *frame, vec3_t origin, vec3_t up, vec3_t right, byte red, byte green, byte blue, int alpha)
   4 {
   5         byte alphaub;
   6         alphaub = bound(0, alpha, 255);
   7         transpolybegin(R_GetTexture(frame->texture), 0, R_GetTexture(frame->fogtexture), currententity->render.effects & EF_ADDITIVE ? TPOLYTYPE_ADD : TPOLYTYPE_ALPHA);
   8         transpolyvertub(origin[0] + frame->down * up[0] + frame->left * right[0], origin[1] + frame->down * up[1] + frame->left * right[1], origin[2] + frame->down * up[2] + frame->left * right[2], 0, 1, red, green, blue, alphaub);
   9         transpolyvertub(origin[0] + frame->up * up[0] + frame->left * right[0], origin[1] + frame->up * up[1] + frame->left * right[1], origin[2] + frame->up * up[2] + frame->left * right[2], 0, 0, red, green, blue, alphaub);
  10         transpolyvertub(origin[0] + frame->up * up[0] + frame->right * right[0], origin[1] + frame->up * up[1] + frame->right * right[1], origin[2] + frame->up * up[2] + frame->right * right[2], 1, 0, red, green, blue, alphaub);
  11         transpolyvertub(origin[0] + frame->down * up[0] + frame->right * right[0], origin[1] + frame->down * up[1] + frame->right * right[1], origin[2] + frame->down * up[2] + frame->right * right[2], 1, 1, red, green, blue, alphaub);
  12         transpolyend();
  13 }
  14
  15 /*
  16 =================
  17 R_DrawSpriteModel
  18
  19 =================
  20 */
  21 void R_DrawSpriteModel (entity_t *e, frameblend_t *blend)
  22 {
  23         vec3_t                  right, up, org, color, mins, maxs;
  24         byte                    colorub[4];
  25         msprite_t               *psprite;
  26
  27         VectorAdd (e->render.origin, e->render.model->mins, mins);
  28         VectorAdd (e->render.origin, e->render.model->maxs, maxs);
  29
  30         if (R_VisibleCullBox (mins, maxs))
  31                 return;
  32
  33         c_sprites++;
  34
  35         psprite = Mod_Extradata(e->render.model);
  36         //psprite = e->model->cache.data;
  37
  38         if (psprite->type == SPR_ORIENTED)
  39         {       // bullet marks on walls
  40                 AngleVectors (e->render.angles, NULL, right, up);
  41                 VectorSubtract(e->render.origin, vpn, org);
  42         }
  43         else
  44         {       // normal sprite
  45                 VectorCopy(vup, up);
  46                 VectorCopy(vright, right);
  47                 VectorCopy(e->render.origin, org);
  48         }
  49         if (e->render.scale != 1)
  50         {
  51                 VectorScale(up, e->render.scale, up);
  52                 VectorScale(right, e->render.scale, right);
  53         }
  54
  55         if (e->render.model->flags & EF_FULLBRIGHT || e->render.effects & EF_FULLBRIGHT)
  56         {
  57                 color[0] = e->render.colormod[0] * 255;
  58                 color[1] = e->render.colormod[1] * 255;
  59                 color[2] = e->render.colormod[2] * 255;
  60         }
  61         else
  62                 R_CompleteLightPoint(color, e->render.origin, true);
  63
  64         colorub[0] = bound(0, color[0], 255);
  65         colorub[1] = bound(0, color[1], 255);
  66         colorub[2] = bound(0, color[2], 255);
  67
  68         // LordHavoc: interpolated sprite rendering
  69         if (blend[0].lerp)
  70                 GL_DrawSpriteImage(((mspriteframe_t *)(psprite->ofs_frames + (int) psprite)) + blend[0].frame, org, up, right, colorub[0],colorub[1],colorub[2], e->render.alpha*255*blend[0].lerp);
  71         if (blend[1].lerp)
  72                 GL_DrawSpriteImage(((mspriteframe_t *)(psprite->ofs_frames + (int) psprite)) + blend[1].frame, org, up, right, colorub[0],colorub[1],colorub[2], e->render.alpha*255*blend[1].lerp);
  73         if (blend[2].lerp)
  74                 GL_DrawSpriteImage(((mspriteframe_t *)(psprite->ofs_frames + (int) psprite)) + blend[2].frame, org, up, right, colorub[0],colorub[1],colorub[2], e->render.alpha*255*blend[2].lerp);
  75         if (blend[3].lerp)
  76                 GL_DrawSpriteImage(((mspriteframe_t *)(psprite->ofs_frames + (int) psprite)) + blend[3].frame, org, up, right, colorub[0],colorub[1],colorub[2], e->render.alpha*255*blend[3].lerp);
  77 }
  78