34 lines
961 B
GLSL
34 lines
961 B
GLSL
!!cvari r_menutint_inverse=0
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!!cvar3f r_menutint=0.68 0.4 0.13
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!!samps 1
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#include "sys/defs.h"
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const vec4 e_rendertexturescale = vec4(1,1,1,1);
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layout(location=0) varying vec2 texcoord;
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#ifdef VERTEX_SHADER
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void main(void)
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{
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#ifdef VULKAN
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texcoord.xy = v_texcoord.xy*e_rendertexturescale.xy;
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#else
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texcoord.x = v_texcoord.x*e_rendertexturescale.x;
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texcoord.y = (1.0-v_texcoord.y)*e_rendertexturescale.y;
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#endif
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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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const vec3 lumfactors = vec3(0.299, 0.587, 0.114);
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const vec3 invertvec = vec3(1.0, 1.0, 1.0);
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void main(void)
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{
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vec3 texcolor = texture2D(s_t0, texcoord).rgb;
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float luminance = dot(lumfactors, texcolor);
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texcolor = vec3(luminance, luminance, luminance);
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texcolor *= cvar_r_menutint;
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texcolor = (cvar_r_menutint_inverse > 0) ? (invertvec - texcolor) : texcolor;
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gl_FragColor = vec4(texcolor, 1.0);
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}
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#endif |