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71 行
1.9 KiB
71 行
1.9 KiB
#ifndef LIGHTWEIGHT_INPUT_SURFACE_COMMON_INCLUDED
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#define LIGHTWEIGHT_INPUT_SURFACE_COMMON_INCLUDED
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#include "Core.hlsl"
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#include "CoreRP/ShaderLibrary/Packing.hlsl"
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#include "CoreRP/ShaderLibrary/CommonMaterial.hlsl"
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TEXTURE2D(_MainTex); SAMPLER(sampler_MainTex);
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TEXTURE2D(_BumpMap); SAMPLER(sampler_BumpMap);
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TEXTURE2D(_EmissionMap); SAMPLER(sampler_EmissionMap);
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// Must match Lightweigth ShaderGraph master node
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struct SurfaceData
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{
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half3 albedo;
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half3 specular;
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half metallic;
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half smoothness;
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half3 normalTS;
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half3 emission;
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half occlusion;
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half alpha;
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};
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///////////////////////////////////////////////////////////////////////////////
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// Material Property Helpers //
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///////////////////////////////////////////////////////////////////////////////
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half Alpha(half albedoAlpha, half4 color, half cutoff)
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{
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#if !defined(_SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A) && !defined(_GLOSSINESS_FROM_BASE_ALPHA)
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half alpha = albedoAlpha * color.a;
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#else
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half alpha = color.a;
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#endif
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#if defined(_ALPHATEST_ON)
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clip(alpha - cutoff);
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#endif
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return alpha;
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}
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half4 SampleAlbedoAlpha(float2 uv, TEXTURE2D_ARGS(albedoAlphaMap, sampler_albedoAlphaMap))
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{
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return SAMPLE_TEXTURE2D(albedoAlphaMap, sampler_albedoAlphaMap, uv);
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}
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half3 SampleNormal(float2 uv, TEXTURE2D_ARGS(bumpMap, sampler_bumpMap), half scale = 1.0h)
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{
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#if _NORMALMAP
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half4 n = SAMPLE_TEXTURE2D(bumpMap, sampler_bumpMap, uv);
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#if BUMP_SCALE_NOT_SUPPORTED
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return UnpackNormal(n);
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#else
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return UnpackNormalScale(n, scale);
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#endif
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#else
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return half3(0.0h, 0.0h, 1.0h);
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#endif
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}
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half3 SampleEmission(float2 uv, half3 emissionColor, TEXTURE2D_ARGS(emissionMap, sampler_emissionMap))
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{
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#ifndef _EMISSION
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return 0;
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#else
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return SAMPLE_TEXTURE2D(emissionMap, sampler_emissionMap, uv).rgb * emissionColor;
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#endif
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}
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#endif // LIGHTWEIGHT_INPUT_SURFACE_COMMON_INCLUDED
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