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69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
//
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// VoxelShader.cpp
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// interface
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//
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// Created by Brad Hefta-Gaub on 9/22/13.
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// Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
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// include this before QOpenGLFramebufferObject, which includes an earlier version of OpenGL
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#include "InterfaceConfig.h"
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#include <QOpenGLFramebufferObject>
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#include "Application.h"
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#include "VoxelShader.h"
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#include "ProgramObject.h"
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#include "RenderUtil.h"
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VoxelShader::VoxelShader()
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: _initialized(false)
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{
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_program = NULL;
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}
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VoxelShader::~VoxelShader() {
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if (_initialized) {
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delete _program;
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}
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}
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ProgramObject* VoxelShader::createGeometryShaderProgram(const QString& name) {
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ProgramObject* program = new ProgramObject();
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program->addShaderFromSourceFile(QGLShader::Vertex, "resources/shaders/passthrough.vert" );
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program->addShaderFromSourceFile(QGLShader::Geometry, "resources/shaders/" + name + ".geom" );
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program->setGeometryInputType(GL_POINTS);
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program->setGeometryOutputType(GL_TRIANGLE_STRIP);
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const int VERTICES_PER_FACE = 4;
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const int FACES_PER_VOXEL = 6;
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const int VERTICES_PER_VOXEL = VERTICES_PER_FACE * FACES_PER_VOXEL;
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program->setGeometryOutputVertexCount(VERTICES_PER_VOXEL);
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program->link();
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return program;
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}
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void VoxelShader::init() {
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if (_initialized) {
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qDebug("[ERROR] TestProgram is already initialized.\n");
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return;
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}
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switchToResourcesParentIfRequired();
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_program = createGeometryShaderProgram("voxel");
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_initialized = true;
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}
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void VoxelShader::begin() {
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_program->bind();
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}
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void VoxelShader::end() {
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_program->release();
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}
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int VoxelShader::attributeLocation(const char * name) const {
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if (_program) {
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return _program->attributeLocation(name);
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} else {
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return -1;
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}
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}
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