Implement GPU-side corona fading

[xonotic/darkplaces.git] / vid_shared.c

diff --git a/vid_shared.c b/vid_shared.c
index 2d6497e508e80efe14cc1517f5ec7a1286e2af2f..7c321c2aa94819089e4898e017747fe06b42c85c 100644 (file)
--- a/vid_shared.c
+++ b/vid_shared.c
@@ -1065,6 +1065,7 @@ void VID_CheckExtensions(void)
        vid.support.arb_draw_buffers = GL_CheckExtension("GL_ARB_draw_buffers", drawbuffersfuncs, "-nodrawbuffers", false);
        vid.support.arb_multitexture = GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false);
        vid.support.arb_occlusion_query = GL_CheckExtension("GL_ARB_occlusion_query", occlusionqueryfuncs, "-noocclusionquery", false);
+       vid.support.arb_query_buffer_object = GL_CheckExtension("GL_ARB_query_buffer_object", NULL, "-noquerybuffer", true);
        vid.support.arb_shadow = GL_CheckExtension("GL_ARB_shadow", NULL, "-noshadow", false);
        vid.support.arb_texture_compression = GL_CheckExtension("GL_ARB_texture_compression", texturecompressionfuncs, "-notexturecompression", false);
        vid.support.arb_texture_cube_map = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
@@ -1110,6 +1111,7 @@ void VID_CheckExtensions(void)
 // COMMANDLINEOPTION: GL: -nofbo disables GL_EXT_framebuffer_object (which accelerates rendering), only used if GL_ARB_fragment_shader is also available
 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
 // COMMANDLINEOPTION: GL: -noocclusionquery disables GL_ARB_occlusion_query (which allows coronas to fade according to visibility, and potentially used for rendering optimizations)
+// COMMANDLINEOPTION: GL: -noquerybuffer disables GL_ARB_query_buffer_object (which allows corona fading without synchronous rendering)
 // COMMANDLINEOPTION: GL: -nos3tc disables GL_EXT_texture_compression_s3tc (which allows use of .dds texture caching)
 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
 // COMMANDLINEOPTION: GL: -noshadow disables use of GL_ARB_shadow (required for hardware shadowmap filtering)
@@ -2122,6 +2124,7 @@ void VID_Soft_SharedSetup(void)
        vid.support.arb_depth_texture = true;
        vid.support.arb_draw_buffers = true;
        vid.support.arb_occlusion_query = true;
+       vid.support.arb_query_buffer_object = false;
        vid.support.arb_shadow = true;
        //vid.support.arb_texture_compression = true;
        vid.support.arb_texture_cube_map = true;