113 lines
3.4 KiB
GLSL
113 lines
3.4 KiB
GLSL
/*
|
|
The MIT License (MIT)
|
|
|
|
Copyright (c) 2022 Google LLC
|
|
Copyright (c) 2022 Sascha Willems
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in all
|
|
copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
SOFTWARE.
|
|
*/
|
|
|
|
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;
|
|
}
|