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Moved shaders to new directory

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Sascha Willems 2023-05-09 21:03:02 +02:00
parent 0b3f8340e3
commit 99b226237a
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shaders/hlsl/terraintessellation/terrain.tese Normal file
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// Copyright 2020 Google LLC
struct UBO
{
float4x4 projection;
float4x4 modelview;
float4 lightPos;
float4 frustumPlanes[6];
float displacementFactor;
float tessellationFactor;
float2 viewportDim;
float tessellatedEdgeSize;
};
cbuffer ubo : register(b0) { UBO ubo; };
Texture2D displacementMapTexture : register(t1);
SamplerState displacementMapSampler : register(s1);
struct HSOutput
{
[[vk::location(2)]] float4 Pos : SV_POSITION;
[[vk::location(0)]] float3 Normal : NORMAL0;
[[vk::location(1)]] float2 UV : TEXCOORD0;
};
struct ConstantsHSOutput
{
float TessLevelOuter[4] : SV_TessFactor;
float TessLevelInner[2] : SV_InsideTessFactor;
};
struct DSOutput
{
float4 Pos : SV_POSITION;
[[vk::location(0)]] float3 Normal : NORMAL0;
[[vk::location(1)]] float2 UV : TEXCOORD0;
[[vk::location(2)]] float3 ViewVec : TEXCOORD1;
[[vk::location(3)]] float3 LightVec : TEXCOORD2;
[[vk::location(4)]] float3 EyePos : POSITION1;
[[vk::location(5)]] float3 WorldPos : POSITION0;
};
[domain("quad")]
DSOutput main(ConstantsHSOutput input, float2 TessCoord : SV_DomainLocation, const OutputPatch<HSOutput, 4> patch)
{
// Interpolate UV coordinates
DSOutput output = (DSOutput)0;
float2 uv1 = lerp(patch[0].UV, patch[1].UV, TessCoord.x);
float2 uv2 = lerp(patch[3].UV, patch[2].UV, TessCoord.x);
output.UV = lerp(uv1, uv2, TessCoord.y);
float3 n1 = lerp(patch[0].Normal, patch[1].Normal, TessCoord.x);
float3 n2 = lerp(patch[3].Normal, patch[2].Normal, TessCoord.x);
output.Normal = lerp(n1, n2, TessCoord.y);
// Interpolate positions
float4 pos1 = lerp(patch[0].Pos, patch[1].Pos, TessCoord.x);
float4 pos2 = lerp(patch[3].Pos, patch[2].Pos, TessCoord.x);
float4 pos = lerp(pos1, pos2, TessCoord.y);
// Displace
pos.y -= displacementMapTexture.SampleLevel(displacementMapSampler, output.UV, 0.0).r * ubo.displacementFactor;
// Perspective projection
output.Pos = mul(ubo.projection, mul(ubo.modelview, pos));
// Calculate vectors for lighting based on tessellated position
output.ViewVec = -pos.xyz;
output.LightVec = normalize(ubo.lightPos.xyz + output.ViewVec);
output.WorldPos = pos.xyz;
output.EyePos = mul(ubo.modelview, pos).xyz;
return output;
}