[SOLVED] Changes in shader chunks in v1.55

Snupty · August 5, 2022, 10:38am

Hi there, where is getNormal() for fragment shaders defined as of v1.55? It used to be defined in the shader chunk “normalVertexPS” but overriding that doesn’t work anymore.

Leonidas · August 5, 2022, 10:40am

Hi @Snupty,

Vertex normals were added on the regular normalMapPS shader chunk, if no normal map is provided on the material:

github.com

playcanvas/engine/blob/main/src/graphics/program-lib/chunks/standard/frag/normalMap.js

export default /* glsl */`
#ifdef MAPTEXTURE
uniform sampler2D texture_normalMap;
uniform float material_bumpiness;
#endif

void getNormal() {
#ifdef MAPTEXTURE
    vec3 normalMap = unpackNormal(texture2D(texture_normalMap, $UV, textureBias));
    normalMap = mix(vec3(0.0, 0.0, 1.0), normalMap, material_bumpiness);
    dNormalW = normalize(dTBN * addNormalDetail(normalMap));
#else
    dNormalW = dVertexNormalW;
#endif
}
`;

slimbuck · August 5, 2022, 10:52am

What @Leonidas said. You can also find more chunk change details here.

Snupty · August 5, 2022, 10:57am

yaustar · August 5, 2022, 8:32pm

A post was split to a new topic: Character damage demo broken in Engine v1.55