OrdinaryMagician/vkdoom_m
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- reactivate compatibility profile so that immediate mode drawing can be used on older hardware not supporting persistently mapped buffers.

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- reactivate alpha testing per fixed function pipeline
- use the 'modern' way to define clip planes (GL_CLIP_DISTANCE). This is far more portable than the old glClipPlane method and a lot more robust than checking this in the fragment shader.
This commit is contained in:
Christoph Oelckers 2014-07-17 02:37:18 +02:00
commit eb9d2d9917
13 changed files with 110 additions and 48 deletions
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src/gl/system/gl_interface.cpp
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@ -134,6 +134,7 @@ void gl_LoadExtensions()
if (CheckExtension("GL_EXT_texture_compression_s3tc")) gl.flags|=RFL_TEXTURE_COMPRESSION_S3TC;
if (CheckExtension("GL_ARB_buffer_storage")) gl.flags |= RFL_BUFFER_STORAGE;
if (CheckExtension("GL_ARB_separate_shader_objects")) gl.flags |= RFL_SEPARATE_SHADER_OBJECTS;
if (!CheckExtension("GL_ARB_compatibility")) gl.flags |= RFL_COREPROFILE;
glGetIntegerv(GL_MAX_TEXTURE_SIZE,&gl.max_texturesize);