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