playcanvas/build/playcanvas/src/scene/shader-lib/wgsl/chunks/particle/frag/particle.js

PlayCanvas WebGL game engine

var particlePS = `
varying texCoordsAlphaLife: vec4f;
var colorMap: texture_2d<f32>;
var colorMapSampler: sampler;
var colorParam: texture_2d<f32>;
var colorParamSampler: sampler;
uniform graphSampleSize: f32;
uniform graphNumSamples: f32;
#ifndef CAMERAPLANES
	#define CAMERAPLANES
	uniform camera_params: vec4f;
#endif
uniform softening: f32;
uniform colorMult: f32;
fn saturate(x: f32) -> f32 {
	return clamp(x, 0.0, 1.0);
}
@fragment
fn fragmentMain(input: FragmentInput) -> FragmentOutput {
	var output: FragmentOutput;
	let tex: vec4f  = textureSample(colorMap, colorMapSampler, vec2f(input.texCoordsAlphaLife.x, 1.0 - input.texCoordsAlphaLife.y));
	var ramp: vec4f = textureSample(colorParam, colorParamSampler, vec2f(input.texCoordsAlphaLife.w, 0.0));
	ramp = vec4f(ramp.rgb * uniform.colorMult, ramp.a);
	ramp.a = ramp.a + input.texCoordsAlphaLife.z;
	var rgb: vec3f = tex.rgb * ramp.rgb;
	var a: f32 = tex.a * ramp.a;
`;

export { particlePS as default };