add DRAWFLAG_SCREEN (which basically is like invert-modulate-invert, equivalent to...

[xonotic/darkplaces.git] / clvm_cmds.c

diff --git a/clvm_cmds.c b/clvm_cmds.c
index 656fbc4e1076153f4d5ab3682a12fdd1a2806ec6..0d30689c41dd3cc00780318b5825d155ef4d7e3a 100644 (file)
--- a/clvm_cmds.c
+++ b/clvm_cmds.c
@@ -2480,12 +2480,16 @@ static void VM_DrawPolygonCallback (const entity_render_t *ent, const rtlight_t
                int numtriangles = 0;
                rtexture_t *tex = polys->data_triangles[surfacelist[surfacelistindex]].texture;
                int drawflag = polys->data_triangles[surfacelist[surfacelistindex]].drawflag;
+               // this can't call _DrawQ_ProcessDrawFlag, but should be in sync with it
+               // FIXME factor this out
                if(drawflag == DRAWFLAG_ADDITIVE)
                        GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
                else if(drawflag == DRAWFLAG_MODULATE)
                        GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
                else if(drawflag == DRAWFLAG_2XMODULATE)
                        GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
+               else if(drawflag == DRAWFLAG_SCREEN)
+                       GL_BlendFunc(GL_ONE_MINUS_DST_COLOR,GL_ONE);
                else
                        GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
                R_Mesh_TexBind(0, R_GetTexture(tex));