#version 120 // // skin_model_shadow.vert // vertex shader // // Created by Andrzej Kapolka on 3/24/14. // Copyright 2014 High Fidelity, Inc. // // Distributed under the Apache License, Version 2.0. // See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html // const int MAX_CLUSTERS = 128; const int INDICES_PER_VERTEX = 4; uniform mat4 clusterMatrices[MAX_CLUSTERS]; attribute vec4 clusterIndices; attribute vec4 clusterWeights; void main(void) { vec4 position = vec4(0.0, 0.0, 0.0, 0.0); for (int i = 0; i < INDICES_PER_VERTEX; i++) { mat4 clusterMatrix = clusterMatrices[int(clusterIndices[i])]; float clusterWeight = clusterWeights[i]; position += clusterMatrix * gl_Vertex * clusterWeight; } gl_Position = gl_ModelViewProjectionMatrix * position; }