Function UpdateNormalOverride

Source/Objects/envobject.cpp:240–256

}

static void UpdateNormalOverride(EnvObject* obj, Model* model) {
    PROFILER_ZONE(g_profiler_ctx, "UpdateNormalOverride");
    obj->normal_override.resize(model->faces.size() / 3);
    obj->normal_override_custom.resize(model->faces.size() / 3, vec4(0.0f));
    for (int i = 0, len = obj->normal_override.size(); i < len; ++i) {
        vec3 vert[3];
        for (int vert_index = 0; vert_index < 3; ++vert_index) {
            int start = model->faces[i * 3 + vert_index] * 3;
            for (int axis = 0; axis < 3; ++axis) {
                vert[vert_index][axis] = model->vertices[start + axis];
            }
            vert[vert_index] = obj->GetTransform() * vert[vert_index];
        }
        vec3 normal = normalize(cross(vert[1] - vert[0], vert[2] - vert[0]));
        obj->normal_override[i] = mix(normal, obj->normal_override_custom[i].xyz(), obj->normal_override_custom[i][3]);  // model->face_normals[i];
    }
}

const size_t kAttribIdCountVboInstancing = 11;
const size_t kAttribIdCountUboInstancing = 7;