93 lines
1.9 KiB
Plaintext
93 lines
1.9 KiB
Plaintext
option HAS_DIFFUSE_TEXTURE: bool;
|
|
option HAS_ALPHA_TEXTURE: bool;
|
|
option ALPHA_TEST: bool;
|
|
|
|
const HasUV = ALPHA_TEST && (HAS_DIFFUSE_TEXTURE || HAS_ALPHA_TEXTURE);
|
|
|
|
[layout(std140)]
|
|
struct BasicSettings
|
|
{
|
|
AlphaThreshold: f32,
|
|
DiffuseColor: vec4<f32>
|
|
}
|
|
|
|
[layout(std140)]
|
|
struct InstanceData
|
|
{
|
|
worldMatrix: mat4<f32>,
|
|
invWorldMatrix: mat4<f32>
|
|
}
|
|
|
|
[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
|
|
{
|
|
[set(0), binding(0)] viewerData: uniform<ViewerData>,
|
|
[set(1), binding(0)] instanceData: uniform<InstanceData>,
|
|
[set(2), binding(0)] settings: uniform<BasicSettings>,
|
|
[set(2), binding(2)] MaterialAlphaMap: sampler2D<f32>,
|
|
}
|
|
|
|
// Fragment stage
|
|
struct FragIn
|
|
{
|
|
[location(0), cond(HasUV)] uv: vec2<f32>
|
|
}
|
|
|
|
[entry(frag), cond(ALPHA_TEST)]
|
|
fn main(input: FragIn)
|
|
{
|
|
let alpha = settings.DiffuseColor.a;
|
|
const if (HAS_DIFFUSE_TEXTURE)
|
|
// TODO: alpha *= MaterialDiffuseMap.Sample(input.uv).a;
|
|
alpha = alpha * MaterialDiffuseMap.Sample(input.uv).a;
|
|
|
|
const if (HAS_ALPHA_TEXTURE)
|
|
// TODO: alpha *= MaterialAlphaMap.Sample(input.uv).x
|
|
alpha = alpha * MaterialAlphaMap.Sample(input.uv).x;
|
|
|
|
// TODO: const assert?
|
|
if (alpha < settings.AlphaThreshold)
|
|
discard;
|
|
}
|
|
|
|
[entry(frag), cond(!ALPHA_TEST)]
|
|
fn main() {}
|
|
|
|
// Vertex stage
|
|
struct VertIn
|
|
{
|
|
[location(0)] pos: vec3<f32>,
|
|
[location(1), cond(HasUV)] uv: vec2<f32>
|
|
}
|
|
|
|
struct VertOut
|
|
{
|
|
[location(0), cond(HasUV)] uv: vec2<f32>,
|
|
[builtin(position)] position: vec4<f32>
|
|
}
|
|
|
|
[entry(vert)]
|
|
fn main(input: VertIn) -> VertOut
|
|
{
|
|
let output: VertOut;
|
|
output.position = viewerData.viewProjMatrix * instanceData.worldMatrix * vec4<f32>(input.pos, 1.0);
|
|
|
|
const if (HasUV)
|
|
output.uv = input.uv;
|
|
|
|
return output;
|
|
}
|