30 lines
1.1 KiB
YAML
30 lines
1.1 KiB
YAML
# PBR effect with additive metallic texture control
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# This effect adds metallic texture values to material metallic values
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# Final metallic = material_metallic + texture_value (clamped to 0-1)
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fragment:
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defines: |
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#define USE_ADDITIVE_METALLIC_TEXTURE 1
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inout: |
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uniform sampler2D p3d_Texture5; // Metallic texture (additive control)
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material: |
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// Additive metallic texture control
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#if USE_ADDITIVE_METALLIC_TEXTURE
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// Sample metallic value from texture
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float sampled_metallic = texture(p3d_Texture5, texcoord).x;
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// Add texture value to material metallic value
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// This allows enhancing existing metallic areas
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m.metallic = clamp(mInput.metallic + sampled_metallic, 0.0, 1.0);
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// Debug: This mode is useful for:
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// - Adding metallic details to non-metallic materials
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// - Enhancing existing metallic areas
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// - Creating metallic highlights on top of base material
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#else
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// Fallback to material metallic value
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m.metallic = mInput.metallic;
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#endif
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