52 lines
2.3 KiB
YAML
52 lines
2.3 KiB
YAML
# Extended PBR effect with support for additional texture types
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# This effect supports metallic, emission, AO, detail, and gloss textures
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fragment:
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defines: |
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#define USE_EXTENDED_TEXTURES 1
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inout: |
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uniform sampler2D p3d_Texture5; // Metallic texture
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uniform sampler2D p3d_Texture6; // Emission texture
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uniform sampler2D p3d_Texture7; // AO texture
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uniform sampler2D p3d_Texture8; // Alpha texture
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uniform sampler2D p3d_Texture9; // Detail texture
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uniform sampler2D p3d_Texture10; // Gloss texture
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material: |
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#if USE_EXTENDED_TEXTURES
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// Metallic texture (p3d_Texture5)
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float sampled_metallic = texture(p3d_Texture5, texcoord).x;
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m.metallic = mInput.metallic * sampled_metallic;
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// Emission texture (p3d_Texture6)
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vec3 sampled_emission = texture(p3d_Texture6, texcoord).xyz;
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if (mInput.shading_model == SHADING_MODEL_EMISSIVE) {
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m.basecolor += sampled_emission * 2.0; // Boost emission intensity
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}
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// AO texture (p3d_Texture7) - multiply with base color
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float sampled_ao = texture(p3d_Texture7, texcoord).x;
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m.basecolor *= sampled_ao;
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// Alpha texture (p3d_Texture8) - for transparency
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float sampled_alpha = texture(p3d_Texture8, texcoord).x;
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if (mInput.shading_model == SHADING_MODEL_TRANSPARENT) {
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// Apply alpha testing
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if (sampled_alpha < 0.5) discard;
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}
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// Detail texture (p3d_Texture9) - blend with base color
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vec3 sampled_detail = texture(p3d_Texture9, texcoord * 4.0).xyz; // Tiled detail
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m.basecolor = mix(m.basecolor, m.basecolor * sampled_detail, 0.5);
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// Gloss texture (p3d_Texture10) - affects roughness
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float sampled_gloss = texture(p3d_Texture10, texcoord).x;
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m.roughness = m.roughness * (1.0 - sampled_gloss); // Gloss is inverse of roughness
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#else
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// Standard behavior when extended textures are not used
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m.metallic = mInput.metallic;
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#endif
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