46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
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[attr] //该段用于描述该材质最终会需要那些数据
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vec3 BaseColor;
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vec3 Normal;
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float Metallic;
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float Roughness;
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[framebuffer] //该段用于描述当前shader会输出到几个Framebuffer上
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//如果是前向渲染，一般只有一个Framebuffer
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vec4 FinalColor;
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//如果是延迟渲染，则代表GBuffer，可能存在多个framebuffer
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vec4 gb_color_metallic;
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vec4 gb_normal_roughness;
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[attr_to_fb] //该段用于描述attr如何转换到framebuffer上
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//如果是UI之类直接上色的，那会比较颜色
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FinalColor=vec4(BaseColor,1.0);
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//如果是前向渲染
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FinalColor=BRDF(BaseColor,Normal,Metallic,Roughness);
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//如果是延迟渲染
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gb_color_metallic =vec4(BaseColor,Metallic);
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gb_normal_roughness =vec4(Normal, Roughness);
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[gb_to_attr] //该段为延迟渲染独有，用于表示如何从gbuffer分解成独立数据
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vec4 gb_cm=texture(gb_color_metallic,FragmentPosition);
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vec4 gb_nr=texture(gb_normal_roughness,FragmentPosition);
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BaseColor =gb_cm.rgb;
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Metallic =gb_cm.a;
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Normal =gb_nr.rgb;
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Roughness =gb_nr.a;
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gl_FragColor=BRDF(BaseColor,Normal,Metallic,Roughness);
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