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struct VertexOutput
@builtin(position) position: vec4
uv: vec2
end
struct Camera
view_proj: mat4
position: vec3
end
struct FragmentOutput
color: vec4
end
struct Lighting
direction: vec3
color: vec3
intensity: float
end
@group(0) uniform camera: Camera
@group(0) uniform lighting: Lighting
@group(1) uniform diffuse_tex: sampler2D
@group(1) uniform normal_tex: sampler2D
@entry(fragment)
function fs_main(input: VertexOutput) -> FragmentOutput
let diffuse = sample(diffuse_tex, input.uv)
let normal_sample = sample(normal_tex, input.uv)
let n = normalize(normal_sample.xyz * 2.0 - vec3(1.0, 1.0, 1.0))
let l = normalize(lighting.direction)
let ndotl = max(dot(n, l), 0.0)
let lit = diffuse.rgb * lighting.color * ndotl * lighting.intensity
return FragmentOutput {
color = vec4(lit, diffuse.a),
}
end