Add missing resources and update .gitignore

bin/resources/lighting.nzsl

@@ -0,0 +1,35 @@
+[layout(std140)]
+struct PointLight
+{
+	color: vec3<f32>,
+	position: vec3<f32>,
+
+	constant: f32,
+	linear: f32,
+	quadratic: f32,
+}
+
+external
+{
+	[binding(0)] colorTexture: sampler2D<f32>,
+	[binding(1)] normalTexture: sampler2D<f32>,
+	[binding(2)] positionTexture: sampler2D<f32>,
+	[binding(3)] lightParameters: uniform<PointLight>
+}
+
+[entry(frag)]
+fn main(input: VertOut) -> FragOut
+{
+	let normal = normalTexture.Sample(input.uv).xyz * 2.0 - vec3<f32>(1.0, 1.0, 1.0);
+	let position = positionTexture.Sample(input.uv).xyz;
+
+	let distance = length(lightParameters.position - position);
+	let lightDir = (lightParameters.position - position) / distance;
+	let lightFactor = dot(normal, lightDir);
+	let attenuation = 1.0 / (lightParameters.constant + lightParameters.linear * distance + lightParameters.quadratic * (distance * distance));
+
+	let output: FragOut;
+	output.color = vec4<f32>(lightParameters.color, 1.0) * lightFactor * attenuation * colorTexture.Sample(input.uv);
+
+	return output;
+}