49 lines
1.7 KiB
Plaintext
49 lines
1.7 KiB
Plaintext
/*
|
|
--------------------------------------------------------------------------------
|
|
This source file is part of SkyX.
|
|
Visit http://www.paradise-studios.net/products/skyx/
|
|
|
|
Copyright (C) 2009-2012 Xavier Verguín González <xavyiy@gmail.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU Lesser General Public License as published by the Free Software
|
|
Foundation; either version 2 of the License, or (at your option) any later
|
|
version.
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
|
|
http://www.gnu.org/copyleft/lesser.txt.
|
|
--------------------------------------------------------------------------------
|
|
*/
|
|
|
|
// --------------------- SkyX moon material ------------------------
|
|
// ------------------------ GLSL Vertex ----------------------------
|
|
|
|
// IN
|
|
attribute vec4 vertex; // iPosition
|
|
attribute vec2 uv0; // iUV
|
|
// OUT
|
|
varying vec4 vUVYLength;
|
|
// UNIFORM
|
|
uniform mat4 uWorld;
|
|
uniform vec3 uSkydomeCenter;
|
|
|
|
void main(void)
|
|
{
|
|
// Clip space position
|
|
gl_Position = gl_ModelViewProjectionMatrix * vertex;
|
|
// World position
|
|
vec3 ObjectSpacePosition = (uWorld * vertex).xyz - uSkydomeCenter;
|
|
|
|
// UV
|
|
vUVYLength.xy = uv0;
|
|
// Z
|
|
vUVYLength.z = ObjectSpacePosition.z;
|
|
// Length
|
|
vUVYLength.w = length(ObjectSpacePosition);
|
|
} |