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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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89
data/shaders/hlsl/instancing/instancing.vert
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// Copyright 2020 Google LLC
struct VSInput
{
[[vk::location(0)]] float3 Pos : POSITION0;
[[vk::location(1)]] float3 Normal : NORMAL0;
[[vk::location(2)]] float2 UV : TEXCOORD0;
[[vk::location(3)]] float3 Color : COLOR0;
// Instanced attributes
[[vk::location(4)]] float3 instancePos : POSITION1;
[[vk::location(5)]] float3 instanceRot : TEXCOORD1;
[[vk::location(6)]] float instanceScale : TEXCOORD2;
[[vk::location(7)]] int instanceTexIndex : TEXCOORD3;
};
struct UBO
{
float4x4 projection;
float4x4 modelview;
float4 lightPos;
float locSpeed;
float globSpeed;
};
cbuffer ubo : register(b0) { UBO ubo; }
struct VSOutput
{
float4 Pos : SV_POSITION;
[[vk::location(0)]] float3 Normal : NORMAL0;
[[vk::location(1)]] float3 Color : COLOR0;
[[vk::location(2)]] float3 UV : TEXCOORD0;
[[vk::location(3)]] float3 ViewVec : TEXCOORD1;
[[vk::location(4)]] float3 LightVec : TEXCOORD2;
};
VSOutput main(VSInput input)
{
VSOutput output = (VSOutput)0;
output.Color = input.Color;
output.UV = float3(input.UV, input.instanceTexIndex);
// rotate around x
float s = sin(input.instanceRot.x + ubo.locSpeed);
float c = cos(input.instanceRot.x + ubo.locSpeed);
float3x3 mx = { c, -s, 0.0,
s, c, 0.0,
0.0, 0.0, 1.0 };
// rotate around y
s = sin(input.instanceRot.y + ubo.locSpeed);
c = cos(input.instanceRot.y + ubo.locSpeed);
float3x3 my = { c, 0.0, -s,
0.0, 1.0, 0.0,
s, 0.0, c };
// rot around z
s = sin(input.instanceRot.z + ubo.locSpeed);
c = cos(input.instanceRot.z + ubo.locSpeed);
float3x3 mz = { 1.0, 0.0, 0.0,
0.0, c, -s,
0.0, s, c };
float3x3 rotMat = mul(mz, mul(my, mx));
float4x4 gRotMat;
s = sin(input.instanceRot.y + ubo.globSpeed);
c = cos(input.instanceRot.y + ubo.globSpeed);
gRotMat[0] = float4(c, 0.0, -s, 0.0);
gRotMat[1] = float4(0.0, 1.0, 0.0, 0.0);
gRotMat[2] = float4(s, 0.0, c, 0.0);
gRotMat[3] = float4(0.0, 0.0, 0.0, 1.0);
float4 locPos = float4(mul(rotMat, input.Pos.xyz), 1.0);
float4 pos = float4((locPos.xyz * input.instanceScale) + input.instancePos, 1.0);
output.Pos = mul(ubo.projection, mul(ubo.modelview, mul(gRotMat, pos)));
output.Normal = mul((float3x3)mul(ubo.modelview, gRotMat), mul(rotMat, input.Normal));
pos = mul(ubo.modelview, float4(input.Pos.xyz + input.instancePos, 1.0));
float3 lPos = mul((float3x3)ubo.modelview, ubo.lightPos.xyz);
output.LightVec = lPos - pos.xyz;
output.ViewVec = -pos.xyz;
return output;
}