46 lines
927 B
Text
46 lines
927 B
Text
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/* Copyright (c) 2025, Sascha Willems
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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struct VSInput
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{
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float3 Pos;
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float2 UV;
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};
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struct VSOutput
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{
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float4 Pos : SV_POSITION;
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float2 UV;
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};
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// todo: pass via specialization constant
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#define SHADOW_MAP_CASCADE_COUNT 4
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struct UBO {
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float4x4 cascadeViewProjMat[SHADOW_MAP_CASCADE_COUNT];
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};
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[[vk::binding(3, 0)]] ConstantBuffer<UBO> ubo;
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[[vk::binding(0, 1)]] Sampler2D colorMapSampler : register(s0, space1);
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[shader("vertex")]
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VSOutput vertexMain(VSInput input, uniform float4 meshPosition, uniform uint cascadeIndex)
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{
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VSOutput output;
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output.UV = input.UV;
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float3 pos = input.Pos + meshPosition.xyz;
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output.Pos = mul(ubo.cascadeViewProjMat[cascadeIndex], float4(pos, 1.0));
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return output;
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}
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[shader("fragment")]
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void fragmentMain(VSOutput input)
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{
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float alpha = colorMapSampler.Sample(input.UV).a;
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if (alpha < 0.5) {
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clip(-1);
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}
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}
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