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87 lines
3.8 KiB
87 lines
3.8 KiB
// This file is part of the FidelityFX SDK.
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//
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// Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#define FSR2_BIND_SRV_PRE_ALPHA_COLOR 0
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#define FSR2_BIND_SRV_POST_ALPHA_COLOR 1
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#define FSR2_BIND_UAV_REACTIVE 0
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#define FSR2_BIND_CB_FSR2 0
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#include "ffx_fsr2_callbacks_hlsl.cginc"
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#include "ffx_fsr2_common.cginc"
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#pragma kernel CS
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Texture2D<float4> r_input_color_pre_alpha : FFX_FSR2_DECLARE_SRV(FSR2_BIND_SRV_PRE_ALPHA_COLOR);
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Texture2D<float4> r_input_color_post_alpha : FFX_FSR2_DECLARE_SRV(FSR2_BIND_SRV_POST_ALPHA_COLOR);
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RWTexture2D<float> rw_output_reactive_mask : FFX_FSR2_DECLARE_UAV(FSR2_BIND_UAV_REACTIVE);
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#ifndef FFX_FSR2_THREAD_GROUP_WIDTH
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#define FFX_FSR2_THREAD_GROUP_WIDTH 8
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#endif // #ifndef FFX_FSR2_THREAD_GROUP_WIDTH
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#ifndef FFX_FSR2_THREAD_GROUP_HEIGHT
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#define FFX_FSR2_THREAD_GROUP_HEIGHT 8
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#endif // FFX_FSR2_THREAD_GROUP_HEIGHT
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#ifndef FFX_FSR2_THREAD_GROUP_DEPTH
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#define FFX_FSR2_THREAD_GROUP_DEPTH 1
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#endif // #ifndef FFX_FSR2_THREAD_GROUP_DEPTH
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#ifndef FFX_FSR2_NUM_THREADS
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#define FFX_FSR2_NUM_THREADS [numthreads(FFX_FSR2_THREAD_GROUP_WIDTH, FFX_FSR2_THREAD_GROUP_HEIGHT, FFX_FSR2_THREAD_GROUP_DEPTH)]
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#endif // #ifndef FFX_FSR2_NUM_THREADS
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cbuffer cbGenerateReactive : register(b0)
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{
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float scale;
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float threshold;
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uint flags;
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float _padding_;
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};
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FFX_FSR2_NUM_THREADS
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FFX_FSR2_EMBED_ROOTSIG_CONTENT
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void CS(uint2 uGroupId : SV_GroupID, uint2 uGroupThreadId : SV_GroupThreadID)
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{
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uint2 uDispatchThreadId = uGroupId * uint2(FFX_FSR2_THREAD_GROUP_WIDTH, FFX_FSR2_THREAD_GROUP_HEIGHT) + uGroupThreadId;
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float3 ColorPreAlpha = r_input_color_pre_alpha[uDispatchThreadId].rgb;
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float3 ColorPostAlpha = r_input_color_post_alpha[uDispatchThreadId].rgb;
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if (flags & FFX_FSR2_AUTOREACTIVEFLAGS_APPLY_TONEMAP)
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{
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ColorPreAlpha = Tonemap(ColorPreAlpha);
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ColorPostAlpha = Tonemap(ColorPostAlpha);
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}
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if (flags & FFX_FSR2_AUTOREACTIVEFLAGS_APPLY_INVERSETONEMAP)
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{
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ColorPreAlpha = InverseTonemap(ColorPreAlpha);
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ColorPostAlpha = InverseTonemap(ColorPostAlpha);
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}
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float out_reactive_value = 0.f;
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float3 delta = abs(ColorPostAlpha - ColorPreAlpha);
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out_reactive_value = (flags & FFX_FSR2_AUTOREACTIVEFLAGS_USE_COMPONENTS_MAX) ? max(delta.x, max(delta.y, delta.z)) : length(delta);
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out_reactive_value *= scale;
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out_reactive_value = (flags & FFX_FSR2_AUTOREACTIVEFLAGS_APPLY_THRESHOLD) ? (out_reactive_value < threshold ? 0 : 1) : out_reactive_value;
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rw_output_reactive_mask[uDispatchThreadId] = out_reactive_value;
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}
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