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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.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later 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 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import Qt3D.Core 2.0
import Qt3D.Render 2.0
Effect {
techniques : [
// OpenGL 3.1
Technique {
graphicsApiFilter {api : GraphicsApiFilter.OpenGL; profile : GraphicsApiFilter.CoreProfile; minorVersion : 1; majorVersion : 3 }
parameters: Parameter { name: "PointLightBlock"; value: ShaderData {
property ShaderDataArray lights: ShaderDataArray {
// hard coded lights until we have a way to filter
// ShaderData in a scene
values: [sceneEntity.light, sphere1.light, sphere2.light, light3.light, light4.light]
}
}
}
renderPasses : RenderPass {
annotations : Annotation { 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 = 5;
uniform PointLightBlock {
PointLight lights[lightCount];
};
void main()
{
vec2 texCoord = gl_FragCoord.xy / winSize;
vec4 col = texture(color, texCoord);
vec3 pos = texture(position, texCoord).xyz;
vec3 norm = texture(normal, texCoord).xyz;
vec4 lightColor;
for (int i = 0; i < lightCount; i++) {
vec3 s = normalize(lights[i].position - pos);
lightColor += lights[i].color * (lights[i].intensity * max(dot(s, norm), 0.0));
}
lightColor /= float(lightCount);
fragColor = col * lightColor;
}
"
}
}
},
// OpenGL 2.0 with FBO extension
Technique {
graphicsApiFilter {api : GraphicsApiFilter.OpenGL; profile : GraphicsApiFilter.NoProfile; minorVersion : 0; majorVersion : 2 }
parameters: Parameter { name: "pointLights"; value: ShaderData {
property ShaderDataArray lights: ShaderDataArray {
// hard coded lights until we have a way to filter
// ShaderData in a scene
values: [sceneEntity.light, sphere1.light, sphere2.light, light3.light, light4.light]
}
}
}
renderPasses : RenderPass {
annotations : Annotation { 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 = 5;
uniform struct
{
PointLight lights[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 < lightCount; i++) {
vec3 s = lights[i].position - pos);
lightColor += lights[i].color * (lights[i].intensity * max(dot(s, norm), 0.0));
}
lightColor /= float(lightCount);
gl_FragColor = col * lightColor;
}
"
}
}
}]
}
|
