36 lines
1.0 KiB
GLSL
36 lines
1.0 KiB
GLSL
#version 330 core
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layout (location = 0) out vec3 gPosition;
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layout (location = 1) out vec3 gNormal;
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layout (location = 2) out vec4 gAlbedo; // linear rgb + alpha
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layout (location = 3) out vec4 gMaterial; // r = metallic, g = roughness, b = ao, a = emissive
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in vec3 FragPos;
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in vec3 Normal;
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in vec2 TexCoord;
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uniform sampler2D tex;
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uniform vec4 colorOverride = vec4(0.0);
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uniform int useTexture = 0;
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uniform float metallic = 0.0;
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uniform float roughness = 0.7;
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uniform float ao = 1.0;
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uniform float emissive = 0.0;
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void main()
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{
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vec4 albedo = vec4(0.8, 0.8, 0.8, 1.0);
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if (useTexture != 0) {
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albedo = texture(tex, TexCoord);
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if (albedo.a < 0.1)
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discard;
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albedo.rgb = albedo.rgb * albedo.rgb; // same cheap 2.2 stand-in as the lighting shaders
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}
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albedo.rgb = mix(albedo.rgb, colorOverride.rgb, colorOverride.w);
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gPosition = FragPos;
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gNormal = normalize(Normal);
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gAlbedo = albedo;
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gMaterial = vec4(clamp(metallic, 0.0, 1.0), clamp(roughness, 0.04, 1.0), ao, clamp(emissive, 0.0, 1.0));
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}
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