initialHEADmain

1 files changed, 61 insertions, 0 deletions

diff --git a/shader.wgsl b/shader.wgsl
new file mode 100644
index 0000000..ac43a44
--- /dev/null
+++ b/shader.wgsl
@@ -0,0 +1,61 @@
+struct VertexInput {
+    @location(0) position: vec3<f32>,
+    @location(1) normal: vec3<f32>,
+    @location(2) uv: vec2<f32>,
+    @location(3) block: vec3<f32>,
+    @location(4) material: f32,
+};
+
+struct VertexOutput {
+    @builtin(position) position: vec4<f32>,
+    @location(0) tint: vec3<f32>,
+    @location(1) uv: vec2<f32>,
+    @location(2) visibility: f32,
+    @location(3) material: f32,
+};
+
+struct Uniforms {
+    proj: mat4x4<f32>,
+    view: mat4x4<f32>,
+    skyColor: vec3<f32>,
+    cameraPos: vec3<f32>,
+    raycast: vec3<f32>,
+    renderDistance: f32,
+};
+
+@group(0) @binding(0) var<uniform> uniforms: Uniforms;
+@group(1) @binding(0) var<uniform> tran: mat4x4<f32>;
+
+@vertex
+fn vs_main(input: VertexInput) -> VertexOutput {
+    var output: VertexOutput;
+    var worldPosition = tran * vec4<f32>(input.position, 1.0);
+    output.position = uniforms.proj * uniforms.view * worldPosition;
+    output.tint = vec3(dot(abs(input.normal), vec3(0.8, 0.9, 0.75)));
+    output.uv = input.uv;
+    output.material = input.material;
+
+    var dist = distance(uniforms.cameraPos.xz, worldPosition.xz);
+    var visibility = 1.0;
+    var fogDepth = 16.0;
+    if (dist / fogDepth > uniforms.renderDistance - 2) {
+        visibility = 1 - (dist - (fogDepth * (uniforms.renderDistance - 2))) / fogDepth;
+    }
+    output.visibility = clamp(visibility, 0.0, 1.0);
+
+    if (all(uniforms.raycast == input.block)) {
+        output.tint = vec3(1.2);
+    }
+
+    return output;
+}
+
+@group(0) @binding(1) var texSampler: sampler;
+@group(0) @binding(2) var texture: texture_2d_array<f32>;
+
+@fragment
+fn fs_main(input: VertexOutput) -> @location(0) vec4<f32> {
+    var color = vec4(input.tint, 1.0) * textureSample(texture, texSampler, input.uv, i32(input.material));
+    var skyColor = vec4(uniforms.skyColor, 1.0);
+    return mix(skyColor, color, input.visibility);
+}