60 lines
No EOL
2.1 KiB
GLSL
60 lines
No EOL
2.1 KiB
GLSL
#include "../../sampler.glsl"
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/*
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contributors: Patricio Gonzalez Vivo
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description: Get material roughness property from GlslViewer's defines https://github.com/patriciogonzalezvivo/glslViewer/wiki/GlslViewer-DEFINES#material-defines
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use: vec4 materialRoughness()
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options:
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- SAMPLER_FNC(TEX, UV): optional depending the target version of GLSL (texture2D(...) or texture(...))
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license:
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
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*/
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#ifndef FNC_MATERIAL_ROUGHNESS
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#define FNC_MATERIAL_ROUGHNESS
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#ifdef MATERIAL_ROUGHNESSMAP
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uniform SAMPLER_TYPE MATERIAL_ROUGHNESSMAP;
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#endif
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#if defined(MATERIAL_ROUGHNESSMETALLICMAP) && !defined(MATERIAL_ROUGHNESSMETALLICMAP_UNIFORM)
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#define MATERIAL_ROUGHNESSMETALLICMAP_UNIFORM
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uniform SAMPLER_TYPE MATERIAL_ROUGHNESSMETALLICMAP;
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#endif
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#if defined(MATERIAL_OCCLUSIONROUGHNESSMETALLICMAP) && !defined(MATERIAL_OCCLUSIONROUGHNESSMETALLICMAP_UNIFORM)
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#define MATERIAL_OCCLUSIONROUGHNESSMETALLICMAP_UNIFORM
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uniform SAMPLER_TYPE MATERIAL_OCCLUSIONROUGHNESSMETALLICMAP;
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#endif
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float materialRoughness() {
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float roughness = 0.05;
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#if defined(MATERIAL_ROUGHNESSMAP) && defined(MODEL_VERTEX_TEXCOORD)
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vec2 uv = v_texcoord.xy;
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#if defined(MATERIAL_ROUGHNESSMAP_OFFSET)
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uv += (MATERIAL_ROUGHNESSMAP_OFFSET).xy;
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#endif
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#if defined(MATERIAL_ROUGHNESSMAP_SCALE)
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uv *= (MATERIAL_ROUGHNESSMAP_SCALE).xy;
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#endif
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roughness = max(roughness, SAMPLER_FNC(MATERIAL_ROUGHNESSMAP, uv).g);
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#elif defined(MATERIAL_ROUGHNESSMETALLICMAP) && defined(MODEL_VERTEX_TEXCOORD)
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vec2 uv = v_texcoord.xy;
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roughness = max(roughness, SAMPLER_FNC(MATERIAL_ROUGHNESSMETALLICMAP, uv).g);
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#elif defined(MATERIAL_OCCLUSIONROUGHNESSMETALLICMAP) && defined(MODEL_VERTEX_TEXCOORD)
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vec2 uv = v_texcoord.xy;
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roughness = max(roughness, SAMPLER_FNC(MATERIAL_OCCLUSIONROUGHNESSMETALLICMAP, uv).g);
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#elif defined(MATERIAL_ROUGHNESS)
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roughness = MATERIAL_ROUGHNESS;
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#endif
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return roughness;
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}
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#endif |