import { ShaderMaterial, Texture } from "three";
export function createDebugViewMaterial(fieldTexture: Texture) {
return new ShaderMaterial({
uniforms: {
fieldTex: { value: fieldTexture },
},
vertexShader: `
// void main() {
// gl_Position = vec4(position, 1.0);
// }
varying vec2 vUv;
void main() { vUv = uv; gl_Position = vec4(position.xy, 0.0, 1.0); }
`,
fragmentShader: `
uniform sampler2D fieldTex;
varying vec2 vUv;
void main() {
// gl_FragColor = texture2D(fieldTex, vUv);
float field = texture2D(fieldTex, vUv).r;
field = pow(field * 2.0, 0.5); // optional tone mapping
gl_FragColor = vec4(vec3(field), 1.0);
}
// precision highp float;
// uniform sampler2D fieldTex;
// void main() {
// vec2 uv = gl_FragCoord.xy / vec2(textureSize(fieldTex, 0));
// float field = texture2D(fieldTex, uv).r;
// // visualize the field as grayscale
// gl_FragColor = vec4(vec3(field), 1.0);
// }
`,
});
}
