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OpenGL2: GL_DEPTH_TEXTURE_MODE was removed from OpenGL 3.0/Core

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GL_DEPTH_TEXTURE_MODE defaults to GL_LUMINANCE. Code sets it here as
part of a workaround old nvidia drivers (apparently? the URL in comment
is dead). GL_DEPTH_TEXTURE_MODE was removed in OpenGL 3.0 / 3.2 Core
contexts and may be treated as an error.
This commit is contained in:
Zack Middleton 2021-10-23 12:36:09 -04:00
parent 1c8b1122c5
commit d1d5a89aad
1 changed files with 3 additions and 1 deletions
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4
code/renderergl2/tr_image.c
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@ -2215,7 +2215,9 @@ image_t *R_CreateImage2( const char *name, byte *pic, int width, int height, GLe
case GL_DEPTH_COMPONENT32_ARB:
// Fix for sampling depth buffer on old nVidia cards.
// from http://www.idevgames.com/forums/thread-4141-post-34844.html#pid34844
qglTextureParameterfEXT(image->texnum, textureTarget, GL_DEPTH_TEXTURE_MODE, GL_LUMINANCE);
if ( !QGL_VERSION_ATLEAST( 3, 0 ) ) {
qglTextureParameterfEXT(image->texnum, textureTarget, GL_DEPTH_TEXTURE_MODE, GL_LUMINANCE);
}
qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
break;