int gl_SetSpriteLight(particle_t * thing, int lightlevel, int rellight, FColormap *cm, float alpha, PalEntry ThingColor) { return gl_SetSpriteLight(NULL, thing->x, thing->y, thing->z, thing->subsector, lightlevel, rellight, cm, alpha, ThingColor, false); }
//========================================================================== // // // //========================================================================== void GLSprite::Draw(int pass) { if (pass!=GLPASS_PLAIN && pass != GLPASS_ALL && pass!=GLPASS_TRANSLUCENT) return; bool additivefog = false; int rel = extralight*gl_weaponlight; if (pass==GLPASS_TRANSLUCENT) { // The translucent pass requires special setup for the various modes. // Brightmaps will only be used when doing regular drawing ops and having no fog if (!gl_isBlack(Colormap.FadeColor) || level.flags&LEVEL_HASFADETABLE || RenderStyle.BlendOp != STYLEOP_Add) { gl_RenderState.EnableBrightmap(false); } gl_SetRenderStyle(RenderStyle, false, // The rest of the needed checks are done inside gl_SetRenderStyle trans > 1.f - FLT_EPSILON && gl_usecolorblending && gl_fixedcolormap < CM_FIRSTSPECIALCOLORMAP && actor && fullbright && gltexture && !gltexture->GetTransparent()); if (hw_styleflags == STYLEHW_NoAlphaTest) { gl_RenderState.EnableAlphaTest(false); } else { gl_RenderState.AlphaFunc(GL_GEQUAL,trans*gl_mask_sprite_threshold); } if (RenderStyle.BlendOp == STYLEOP_Fuzz) { float fuzzalpha=0.44f; float minalpha=0.1f; // fog + fuzz don't work well without some fiddling with the alpha value! if (!gl_isBlack(Colormap.FadeColor)) { float xcamera=FIXED2FLOAT(viewx); float ycamera=FIXED2FLOAT(viewy); float dist=Dist2(xcamera,ycamera, x,y); if (!Colormap.FadeColor.a) Colormap.FadeColor.a=clamp<int>(255-lightlevel,60,255); // this value was determined by trial and error and is scale dependent! float factor=0.05f+exp(-Colormap.FadeColor.a*dist/62500.f); fuzzalpha*=factor; minalpha*=factor; } gl_RenderState.AlphaFunc(GL_GEQUAL,minalpha*gl_mask_sprite_threshold); gl.Color4f(0.2f,0.2f,0.2f,fuzzalpha); additivefog = true; } else if (RenderStyle.BlendOp == STYLEOP_Add && RenderStyle.DestAlpha == STYLEALPHA_One) { additivefog = true; } } if (RenderStyle.BlendOp!=STYLEOP_Fuzz) { if (actor) { lightlevel = gl_SetSpriteLighting(RenderStyle, actor, lightlevel, rel, &Colormap, ThingColor, trans, fullbright || gl_fixedcolormap >= CM_FIRSTSPECIALCOLORMAP, false); } else if (particle) { if (gl_light_particles) { lightlevel = gl_SetSpriteLight(particle, lightlevel, rel, &Colormap, trans, ThingColor); } else { gl_SetColor(lightlevel, rel, &Colormap, trans, ThingColor); } } else return; } if (gl_isBlack(Colormap.FadeColor)) foglevel=lightlevel; if (RenderStyle.Flags & STYLEF_FadeToBlack) { Colormap.FadeColor=0; additivefog = true; } if (RenderStyle.Flags & STYLEF_InvertOverlay) { Colormap.FadeColor = Colormap.FadeColor.InverseColor(); additivefog=false; } gl_SetFog(foglevel, rel, &Colormap, additivefog); if (gltexture) gltexture->BindPatch(Colormap.colormap,translation); else if (!modelframe) gl_RenderState.EnableTexture(false); if (!modelframe) { // [BB] Billboard stuff const bool drawWithXYBillboard = ( !(actor && actor->renderflags & RF_FORCEYBILLBOARD) //&& GLRenderer->mViewActor != NULL && (gl_billboard_mode == 1 || (actor && actor->renderflags & RF_FORCEXYBILLBOARD )) ); gl_RenderState.Apply(); gl.Begin(GL_TRIANGLE_STRIP); if ( drawWithXYBillboard ) { // Rotate the sprite about the vector starting at the center of the sprite // triangle strip and with direction orthogonal to where the player is looking // in the x/y plane. float xcenter = (x1+x2)*0.5; float ycenter = (y1+y2)*0.5; float zcenter = (z1+z2)*0.5; float angleRad = DEG2RAD(270. - float(GLRenderer->mAngles.Yaw)); Matrix3x4 mat; mat.MakeIdentity(); mat.Translate( xcenter, zcenter, ycenter); mat.Rotate(-sin(angleRad), 0, cos(angleRad), -GLRenderer->mAngles.Pitch); mat.Translate( -xcenter, -zcenter, -ycenter); Vector v1 = mat * Vector(x1,z1,y1); Vector v2 = mat * Vector(x2,z1,y2); Vector v3 = mat * Vector(x1,z2,y1); Vector v4 = mat * Vector(x2,z2,y2); if (gltexture) { gl.TexCoord2f(ul, vt); gl.Vertex3fv(&v1[0]); gl.TexCoord2f(ur, vt); gl.Vertex3fv(&v2[0]); gl.TexCoord2f(ul, vb); gl.Vertex3fv(&v3[0]); gl.TexCoord2f(ur, vb); gl.Vertex3fv(&v4[0]); } else // Particle { gl.Vertex3fv(&v1[0]); gl.Vertex3fv(&v2[0]); gl.Vertex3fv(&v3[0]); gl.Vertex3fv(&v4[0]); } } else { if (gltexture) { gl.TexCoord2f(ul, vt); gl.Vertex3f(x1, z1, y1); gl.TexCoord2f(ur, vt); gl.Vertex3f(x2, z1, y2); gl.TexCoord2f(ul, vb); gl.Vertex3f(x1, z2, y1); gl.TexCoord2f(ur, vb); gl.Vertex3f(x2, z2, y2); } else // Particle { gl.Vertex3f(x1, z1, y1); gl.Vertex3f(x2, z1, y2); gl.Vertex3f(x1, z2, y1); gl.Vertex3f(x2, z2, y2); } } gl.End(); } else { gl_RenderModel(this, Colormap.colormap); } if (pass==GLPASS_TRANSLUCENT) { gl_RenderState.EnableBrightmap(true); gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); gl_RenderState.BlendEquation(GL_FUNC_ADD); gl_RenderState.SetTextureMode(TM_MODULATE); // [BB] Restore the alpha test after drawing a smooth particle. if (hw_styleflags == STYLEHW_NoAlphaTest) { gl_RenderState.EnableAlphaTest(true); } else { gl_RenderState.AlphaFunc(GL_GEQUAL,gl_mask_sprite_threshold); } } gl_RenderState.EnableTexture(true); }