mirror of
https://github.com/muskit/H3VR-TNH-Quality-of-Life-Improvements.git
synced 2026-06-03 04:34:26 -07:00
msk
66 lines
2.2 KiB
HLSL
Vendored
66 lines
2.2 KiB
HLSL
Vendored
// Alloy Physical Shader Framework
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// Copyright 2013-2017 RUST LLC.
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// http://www.alloy.rustltd.com/
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/////////////////////////////////////////////////////////////////////////////////
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/// @file TransitionBlend.cginc
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/// @brief Blending using an alpha mask and a cutoff, with a glow effect.
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/////////////////////////////////////////////////////////////////////////////////
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#ifndef ALLOY_SHADERS_FEATURE_TRANSITION_BLEND_CGINC
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#define ALLOY_SHADERS_FEATURE_TRANSITION_BLEND_CGINC
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#ifdef A_TRANSITION_BLEND_ON
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#ifndef A_EMISSIVE_COLOR_ON
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#define A_EMISSIVE_COLOR_ON
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#endif
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#endif
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#include "Assets/Alloy/Shaders/Framework/Feature.cginc"
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#ifdef A_TRANSITION_BLEND_ON
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/// Transition glow tint color.
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/// Expects a linear HDR color with alpha.
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half4 _TransitionGlowColor;
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/// Transition glow color with effect ramp in the alpha.
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/// Expects an RGBA map with sRGB sampling.
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A_SAMPLER_2D(_TransitionTex);
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/// The cutoff value for the transition effect in the ramp map.
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/// Expects values in the range [0,1].
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half _TransitionCutoff;
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#ifndef A_TRANSITION_BLEND_GLOW_OFF
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/// The weight of the transition glow effect.
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/// Expects linear space value in the range [0,1].
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half _TransitionGlowWeight;
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/// The width of the transition glow effect.
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/// Expects values in the range [0,1].
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half _TransitionEdgeWidth;
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#endif
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#endif
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void aTransitionBlend(
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inout ASurface s)
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{
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#ifdef A_TRANSITION_BLEND_ON
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float2 transitionUv = A_TEX_TRANSFORM_UV(s, _TransitionTex);
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half4 transitionBase = _TransitionGlowColor * tex2D(_TransitionTex, transitionUv);
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half clipval = transitionBase.a * 0.99h - _TransitionCutoff;
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s.mask = clipval >= 0 ? 0.0h : s.mask;
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#ifndef A_TRANSITION_BLEND_GLOW_OFF
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// Transition glow
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half3 glow = s.emissiveColor + transitionBase.rgb * _TransitionGlowWeight;
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glow = clipval >= _TransitionEdgeWidth ? s.emissiveColor : glow; // Outer edge.
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s.emissiveColor = _TransitionCutoff < A_EPSILON ? s.emissiveColor : glow; // Kill when cutoff is zero.
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#endif
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#endif
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}
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#endif // ALLOY_SHADERS_FEATURE_TRANSITION_BLEND_CGINC
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