void createShaders()
{
vertexShader =
"attribute vec4 position;\n"
"attribute vec4 sourceColour;\n"
"attribute vec2 texureCoordIn;\n"
"\n"
"uniform mat4 projectionMatrix;\n"
"uniform mat4 viewMatrix;\n"
"\n"
"varying vec4 destinationColour;\n"
"varying vec2 textureCoordOut;\n"
"\n"
"void main()\n"
"{\n"
" destinationColour = sourceColour;\n"
" textureCoordOut = texureCoordIn;\n"
" gl_Position = projectionMatrix * viewMatrix * position;\n"
"}\n";
fragmentShader =
#if JUCE_OPENGL_ES
"varying lowp vec4 destinationColour;\n"
"varying lowp vec2 textureCoordOut;\n"
#else
"varying vec4 destinationColour;\n"
"varying vec2 textureCoordOut;\n"
#endif
"\n"
"void main()\n"
"{\n"
" vec4 colour = vec4(0.95, 0.57, 0.03, 0.7);\n"
" gl_FragColor = colour;\n"
"}\n";
ScopedPointer<OpenGLShaderProgram> newShader (new OpenGLShaderProgram (openGLContext));
String statusText;
if (newShader->addVertexShader (OpenGLHelpers::translateVertexShaderToV3 (vertexShader))
&& newShader->addFragmentShader (OpenGLHelpers::translateFragmentShaderToV3 (fragmentShader))
&& newShader->link())
{
shape = nullptr;
attributes = nullptr;
uniforms = nullptr;
shader = newShader;
shader->use();
shape = new Shape (openGLContext);
attributes = new Attributes (openGLContext, *shader);
uniforms = new Uniforms (openGLContext, *shader);
statusText = "GLSL: v" + String (OpenGLShaderProgram::getLanguageVersion(), 2);
}
else
{
statusText = newShader->getLastError();
}
}
void createShaders()
{
vertexShader =
"attribute vec4 position;\n"
"attribute vec4 sourceColour;\n"
"attribute vec2 textureCoordIn;\n"
"\n"
"uniform mat4 projectionMatrix;\n"
"uniform mat4 viewMatrix;\n"
"\n"
"varying vec4 destinationColour;\n"
"varying vec2 textureCoordOut;\n"
"\n"
"void main()\n"
"{\n"
" destinationColour = sourceColour;\n"
" textureCoordOut = textureCoordIn;\n"
" gl_Position = projectionMatrix * viewMatrix * position;\n"
"}\n";
fragmentShader =
#if JUCE_OPENGL_ES
"varying lowp vec4 destinationColour;\n"
"varying lowp vec2 textureCoordOut;\n"
#else
"varying vec4 destinationColour;\n"
"varying vec2 textureCoordOut;\n"
#endif
#if DEFAULT_TEXTURE == 2
"\n"
"uniform sampler2D demoTexture;\n"
"\n"
#endif
"void main()\n"
"{\n"
#if JUCE_OPENGL_ES
" precision lowp float;\n"
#endif
#if !DEFAULT_TEXTURE
" gl_FragColor = destinationColour;\n"
#elif DEFAULT_TEXTURE == 1
" gl_FragColor = vec4(0.95, 0.57, 0.03, 0.7);\n"
#elif DEFAULT_TEXTURE == 2
" gl_FragColor = texture2D (demoTexture, textureCoordOut);\n"
#endif
"}\n";
// An OpenGLShaderProgram is a combination of shaders which are compiled and linked together
ScopedPointer<OpenGLShaderProgram> newShaderProgram (new OpenGLShaderProgram (openGLContext));
String statusText; // Can be used to give a success or failure message after GLSL compilation
// Create the program that combines Vertex and Fragment shaders
if (newShaderProgram->addVertexShader (OpenGLHelpers::translateVertexShaderToV3 (vertexShader))
&& newShaderProgram->addFragmentShader (OpenGLHelpers::translateFragmentShaderToV3 (fragmentShader))
&& newShaderProgram->link())
{
// Do the following to be in a known state in case problems occur
shape = nullptr;
attributes = nullptr;
uniforms = nullptr;
// Tell the GPU that this program is the one to be used for next frame
usedShaderProgram = newShaderProgram;
// ** Not needed **: will be called when render callback is run shader->use();
// Load the object that will be used to defined vertices and fragments
shape = new Shape (openGLContext); // The object itself
attributes = new Attributes (openGLContext, *usedShaderProgram); // The object attributes
uniforms = new Uniforms (openGLContext, *usedShaderProgram); // The global data to be shared between
// the CPU code and the GPU shaders
statusText = "GLSL: v" + String (OpenGLShaderProgram::getLanguageVersion(), 2); // Not used in this demo
}
else
{
statusText = newShaderProgram->getLastError(); // Not used in this demo
}
}