bevy/assets/shaders/instancing.wgsl
James O'Brien 62ae660357
Fix shader_instancing example (#9448)
# Objective

- Fix shader compilation issue in `shader_instancing` example.

## Solution

- Fix typo in `instancing.wgsl`
2023-08-15 07:28:45 +00:00

37 lines
1.1 KiB
WebGPU Shading Language

#import bevy_pbr::mesh_functions get_model_matrix, mesh_position_local_to_clip
#import bevy_pbr::mesh_bindings mesh
struct Vertex {
@location(0) position: vec3<f32>,
@location(1) normal: vec3<f32>,
@location(2) uv: vec2<f32>,
@location(3) i_pos_scale: vec4<f32>,
@location(4) i_color: vec4<f32>,
};
struct VertexOutput {
@builtin(position) clip_position: vec4<f32>,
@location(0) color: vec4<f32>,
};
@vertex
fn vertex(vertex: Vertex) -> VertexOutput {
let position = vertex.position * vertex.i_pos_scale.w + vertex.i_pos_scale.xyz;
var out: VertexOutput;
// NOTE: Passing 0 as the instance_index to get_model_matrix() is a hack
// for this example as the instance_index builtin would map to the wrong
// index in the Mesh array. This index could be passed in via another
// uniform instead but it's unnecessary for the example.
out.clip_position = mesh_position_local_to_clip(
get_model_matrix(0u),
vec4<f32>(position, 1.0)
);
out.color = vertex.i_color;
return out;
}
@fragment
fn fragment(in: VertexOutput) -> @location(0) vec4<f32> {
return in.color;
}