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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
import Qt3D 2.0
import Qt3D.Render 2.0
Effect {
techniques : [
// OpenGL 3.1
Technique {
openGLFilter {api : OpenGLFilter.Desktop; profile : OpenGLFilter.Core; minorVersion : 1; majorVersion : 3 }
renderPasses : RenderPass {
criteria : Criterion { name : "pass"; value : "final" }
shaderProgram : ShaderProgram {
id : finalShaderGL3
vertexShaderCode:
"
#version 140
in vec4 vertexPosition;
uniform mat4 modelMatrix;
void main()
{
gl_Position = modelMatrix * vertexPosition;
}
"
fragmentShaderCode:
"
#version 140
uniform sampler2D color;
uniform sampler2D position;
uniform sampler2D normal;
uniform vec2 winSize;
out vec4 fragColor;
struct PointLight
{
vec3 position;
vec3 direction;
vec4 color;
float intensity;
};
const int lightCount = 3;
uniform PointLight pointLights[lightCount];
void main()
{
vec2 texCoord = gl_FragCoord.xy / winSize;
vec4 col = texture2D(color, texCoord);
vec3 pos = texture2D(position, texCoord).xyz;
vec3 norm = texture2D(normal, texCoord).xyz;
vec4 lightColor;
for (int i = 0; i < 3; i++) {
vec3 s = normalize(pointLights[i].position - pos);
lightColor += pointLights[i].color * (pointLights[i].intensity * max(dot(s, norm), 0.0));
}
lightColor /= float(lightCount);
fragColor = col * lightColor;
}
"
}
}
},
// OpenGL 2.0 with FBO extension
Technique {
openGLFilter {api : OpenGLFilter.Desktop; profile : OpenGLFilter.None; minorVersion : 0; majorVersion : 2 }
renderPasses : RenderPass {
criteria : Criterion { name : "pass"; value : "final" }
shaderProgram : ShaderProgram {
id : finalShaderGL2
vertexShaderCode:
"
#version 110
attribute vec4 vertexPosition;
uniform mat4 modelMatrix;
void main()
{
gl_Position = modelMatrix * vertexPosition;
}
"
fragmentShaderCode:
"
#version 110
uniform sampler2D color;
uniform sampler2D position;
uniform sampler2D normal;
uniform vec2 winSize;
struct PointLight
{
vec3 position;
vec3 direction;
vec4 color;
float intensity;
};
const int lightCount = 3;
uniform PointLight pointLights[lightCount];
void main()
{
vec2 texCoord = gl_FragCoord.xy / winSize;
vec4 col = texture2D(color, texCoord);
vec3 pos = texture2D(position, texCoord).xyz;
vec3 norm = texture2D(normal, texCoord).xyz;
vec4 lightColor;
for (int i = 0; i < 3; i++) {
vec3 s = normalize(pointLights[i].position - pos);
lightColor += pointLights[i].color * (pointLights[i].intensity * max(dot(s, norm), 0.0));
}
lightColor /= float(lightCount);
gl_FragColor = col * lightColor;
}
"
}
}
}]
}
|
