overte/interface/resources/shaders/metavoxel_point.vert
2014-07-21 19:00:13 -07:00

28 lines
883 B
GLSL

#version 120
//
// metavoxel_point.vert
// vertex shader
//
// Created by Andrzej Kapolka on 12/12/13.
// Copyright 2013 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
//
uniform float pointScale;
void main(void) {
// standard diffuse lighting
gl_FrontColor = vec4(gl_Color.rgb * (gl_LightModel.ambient.rgb + gl_LightSource[0].ambient.rgb +
gl_LightSource[0].diffuse.rgb * max(0.0, dot(gl_NormalMatrix * gl_Normal, gl_LightSource[0].position.xyz))),
0.0);
// extract the first three components of the vertex for position
gl_Position = gl_ModelViewProjectionMatrix * vec4(gl_Vertex.xyz, 1.0);
// the final component is the size in world space
gl_PointSize = pointScale * gl_Vertex.w / gl_Position.w;
}