42 lines
No EOL
855 B
Text
42 lines
No EOL
855 B
Text
/* 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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float4 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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struct UBO
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{
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float4x4 projection;
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float4x4 modelview;
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};
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ConstantBuffer<UBO> ubo;
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[shader("vertex")]
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VSOutput vertexMain(VSInput input)
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{
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VSOutput output;
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output.UV = input.UV;
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// Skysphere always at center, only use rotation part of modelview matrix
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output.Pos = mul(ubo.projection, float4(mul((float3x3)ubo.modelview, input.Pos.xyz), 1));
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return output;
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}
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[shader("fragment")]
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float4 fragmentMain(VSOutput input)
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{
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const float4 gradientStart = float4(0.93, 0.9, 0.81, 1.0);
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const float4 gradientEnd = float4(0.35, 0.5, 1.0, 1.0);
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return lerp(gradientStart, gradientEnd, min(0.5 - (input.UV.y + 0.05), 0.5)/0.15 - 0.5);
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} |