NazaraEngine/bin/resources/bloom_bright.nzsl

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[layout(std140)]
struct ViewerData
{
projectionMatrix: mat4<f32>,
invProjectionMatrix: mat4<f32>,
viewMatrix: mat4<f32>,
invViewMatrix: mat4<f32>,
viewProjMatrix: mat4<f32>,
invViewProjMatrix: mat4<f32>,
renderTargetSize: vec2<f32>,
invRenderTargetSize: vec2<f32>,
eyePosition: vec3<f32>
}
external
{
[binding(0)] colorTexture: sampler2D<f32>,
[binding(1)] viewerData: uniform<ViewerData>
}
struct FragIn
{
[builtin(fragcoord)] fragcoord: vec4<f32>
}
struct FragOut
{
[location(0)] color: vec4<f32>
}
struct VertIn
{
[location(0)] pos: vec3<f32>
}
struct VertOut
{
[builtin(position)] position: vec4<f32>
}
[entry(frag)]
fn main(input: FragIn) -> FragOut
{
let BrightLuminance = 0.8;
let BrightMiddleGrey = 0.5;
let BrightThreshold = 0.7;
let fragcoord = input.fragcoord.xy * viewerData.invRenderTargetSize * 10.0;
let color = colorTexture.Sample(fragcoord).rgb;
color = color * (BrightMiddleGrey/BrightLuminance);
color = color * (vec3<f32>(1.0, 1.0, 1.0) + (color / (BrightThreshold*BrightThreshold)));
color = color - vec3<f32>(0.5, 0.5, 0.5);
color = color / (vec3<f32>(1.0, 1.0, 1.0) + color);
let output: FragOut;
output.color = vec4<f32>(color, 1.0);
return output;
}
[entry(vert)]
fn main(input: VertIn) -> VertOut
{
let output: VertOut;
output.position = vec4<f32>(input.pos, 1.0);
return output;
}