playcanvas

Version:

PlayCanvas WebGL game engine

14 lines (12 loc) • 526 B

JavaScript

var parallaxPS = `
uniform material_heightMapFactor: f32;
fn getParallax() {
	var parallaxScale = uniform.material_heightMapFactor;
	var height: f32 = textureSampleBias({STD_HEIGHT_TEXTURE_NAME}, {STD_HEIGHT_TEXTURE_NAME}Sampler, {STD_HEIGHT_TEXTURE_UV}, uniform.textureBias).{STD_HEIGHT_TEXTURE_CHANNEL};
	height = height * parallaxScale - parallaxScale * 0.5;
	var viewDirT: vec3f = dViewDirW * dTBN;
	viewDirT.z = viewDirT.z + 0.42;
	dUvOffset = height * (viewDirT.xy / viewDirT.z);
}
`;

export { parallaxPS as default };