44 lines
909 B
GLSL
44 lines
909 B
GLSL
!!ver 100-450
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!!samps 1
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!!cvardf gl_fake16bit=0
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!!cvardf gl_monochrome=0
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//this shader is present for support for gles/gl3core contexts
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//it is single-texture-with-vertex-colours, and doesn't do anything special.
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//beware that a few things use this, including apparently fonts and bloom rescaling.
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//its really not meant to do anything special.
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varying vec2 tc;
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varying vec4 vc;
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#ifdef VERTEX_SHADER
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attribute vec2 v_texcoord;
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attribute vec4 v_colour;
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void main ()
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{
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tc = v_texcoord;
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vc = v_colour;
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gl_Position = ftetransform();
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}
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#endif
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#ifdef FRAGMENT_SHADER
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void main ()
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{
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vec4 f = vc;
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#ifdef PREMUL
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f.rgb *= f.a;
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#endif
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f *= texture2D(s_t0, tc);
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#if gl_fake16bit == 1
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f.rgb = floor(f.rgb * vec3(32,64,32))/vec3(32,64,32);
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#endif
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#if gl_monochrome == 1
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float m = (f.r + f.g + f.b) / 3.0f;
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f.rgb = vec3(m,m,m);
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#endif
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gl_FragColor = f;
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}
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#endif
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