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Split color and mask atlases apart

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Joshua Groves 2022-11-28 07:18:45 -03:30 • committed by Josh Groves
parent 6cf10bba8d
commit 3a0e965675
4 changed files with 254 additions and 122 deletions
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36
src/shader.wgsl
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@ -4,12 +4,14 @@ struct VertexInput {
@location(1) dim: u32,
@location(2) uv: u32,
@location(3) color: u32,
@location(4) content_type: u32,
}
struct VertexOutput {
@builtin(position) position: vec4<f32>,
@location(0) color: vec4<f32>,
@location(1) uv: vec2<f32>,
@location(2) content_type: u32,
};
struct Params {
@ -21,9 +23,12 @@ struct Params {
var<uniform> params: Params;
@group(0) @binding(1)
var atlas_texture: texture_2d<f32>;
var color_atlas_texture: texture_2d<f32>;
@group(0) @binding(2)
var mask_atlas_texture: texture_2d<f32>;
@group(0) @binding(3)
var atlas_sampler: sampler;
@vertex
@ -70,12 +75,37 @@ fn vs_main(in_vert: VertexInput) -> VertexOutput {
f32((color & 0xff000000u) >> 24u),
) / 255.0;
vert_output.uv = vec2<f32>(uv) / vec2<f32>(textureDimensions(atlas_texture).xy);
var dim = vec2<u32>(0);
switch in_vert.content_type {
case 0u: {
dim = textureDimensions(color_atlas_texture);
break;
}
case 1u: {
dim = textureDimensions(mask_atlas_texture);
break;
}
default: {}
}
vert_output.content_type = in_vert.content_type;
vert_output.uv = vec2<f32>(uv) / vec2<f32>(dim);
return vert_output;
}
@fragment
fn fs_main(in_frag: VertexOutput) -> @location(0) vec4<f32> {
return in_frag.color * textureSample(atlas_texture, atlas_sampler, in_frag.uv);
switch in_frag.content_type {
case 0u: {
return textureSampleLevel(color_atlas_texture, atlas_sampler, in_frag.uv, 0.0);
}
case 1u: {
return in_frag.color * textureSampleLevel(mask_atlas_texture, atlas_sampler, in_frag.uv, 0.0);
}
default: {
return vec4<f32>(0.0);
}
}
}