void GLWidget::initializeGL()
{
//load opengl functions that are not in QGLFunctions
//on mac and linux use glXGetProcAddress
//on windows use wglGetProcAddress and don't cast to const GLubyte*
initializeDraw();
draw();
}
void Image::show(const char * title)
{
GLFWwindow * pWindow = NULL;
if (title != NULL)
{
fprintf(stderr, "Showing image %s.\n", title);
pWindow = InitializeGLFWWindow(_width,
_height,
title);
} else
{
fprintf(stderr, "Showing image.\n");
pWindow = InitializeGLFWWindow(_width,
_height,
"Image");
}
glfwSetKeyCallback(pWindow, key_callback);
//After the openGL context is set up, initialize openGL
initializeDraw();
//Then load data into a texture
{
glGenTextures(1, &GLInfo._tex);
glBindTexture(GL_TEXTURE_2D, GLInfo._tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _width,
_height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
_buf);
GLuint tex_id = glGetUniformLocation(GLInfo._pid, "tex");
glUniform1i(tex_id, 0 /*GL_TEXTURE0*/);
}
glUseProgram(GLInfo._pid);
glBindVertexArray(GLInfo._vao);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, GLInfo._tex);
//ok we're ready. Let glfw do the msg loop and draw the quad
while (!glfwWindowShouldClose(pWindow))
{
glClear(GL_COLOR_BUFFER_BIT);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glfwSwapBuffers(pWindow);
glfwPollEvents();
}
/// Close OpenGL window and terminate GLFW
glfwDestroyWindow(pWindow);
cleanupDraw();
glfwTerminate();
}
void BaseShapeUI::draw( const MDrawRequest & request, M3dView & view ) const {
if (s_drawData.failure)
return;
MStatus status;
view.beginGL();
if (!s_drawData.initialized)
initializeDraw();
BaseShape *shape = (BaseShape *) surfaceShape();
Model::Base base(MFnDagNode(shape->thisMObject()).parent(0, &status));
if (!status) {
status.perror("MFnDagNode::parent");
return;
}
//MDagPath path = request.multiPath();
MMaterial material = request.material();
MColor color, borderColor;
if (!(status = material.getDiffuse(color))) {
status.perror("MMaterial::getDiffuse");
return;
}
bool wireframe = (M3dView::DisplayStyle) request.token() == M3dView::kWireFrame;
if (wireframe) {
glPushAttrib(GL_POLYGON_BIT);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
}
glUseProgram(s_drawData.program);
switch (request.displayStatus())
{
case M3dView::kLead :
borderColor = view.colorAtIndex( LEAD_COLOR);
//glUniform1f(s_drawData.border_uniform, 1.0f);
s_drawData.updateBorderUniform(1.0f);
//glUniform3f(s_drawData.borderColor_uniform, borderColor.r, borderColor.g, borderColor.b);
s_drawData.updateBorderColorUniform(borderColor.r, borderColor.g, borderColor.b);
break;
case M3dView::kActive :
borderColor = view.colorAtIndex( ACTIVE_COLOR);
//glUniform1f(s_drawData.border_uniform, 1.0f);
s_drawData.updateBorderUniform(1.0f);
//glUniform3f(s_drawData.borderColor_uniform, borderColor.r, borderColor.g, borderColor.b);
s_drawData.updateBorderColorUniform(borderColor.r, borderColor.g, borderColor.b);
break;
case M3dView::kActiveAffected :
borderColor = view.colorAtIndex( ACTIVE_AFFECTED_COLOR);
//glUniform1f(s_drawData.border_uniform, 0.0f);
s_drawData.updateBorderUniform(0.0f);
break;
case M3dView::kDormant :
borderColor = view.colorAtIndex( DORMANT_COLOR, M3dView::kDormantColors);
//glUniform1f(s_drawData.border_uniform, 0.0f);
s_drawData.updateBorderUniform(0.0f);
break;
case M3dView::kHilite :
borderColor = view.colorAtIndex( HILITE_COLOR);
//glUniform1f(s_drawData.border_uniform, 1.0f);
s_drawData.updateBorderUniform(1.0f);
//glUniform3f(s_drawData.borderColor_uniform, borderColor.r, borderColor.g, borderColor.b);
s_drawData.updateBorderColorUniform(borderColor.r, borderColor.g, borderColor.b);
break;
}
//glUniform3f(s_drawData.color_uniform, color.r, color.g, color.b);
s_drawData.updateColorUniform(color.r, color.g, color.b);
glCallList(s_drawData.display_list);
if (wireframe)
glPopAttrib();
view.endGL();
}
void Image::show(const char * title)
{
fprintf(stderr, "Showing image %s.\n", title);
glfwSetErrorCallback(error_char);
if (!glfwInit()) return;
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
GLFWwindow * pWindow = NULL;
if (title == 0)
pWindow = glfwCreateWindow(_width, _height, "Image", NULL, NULL);
else
pWindow = glfwCreateWindow(_width, _height, title, NULL, NULL);
if (!pWindow)
{
fprintf(stderr, "\nGLFW Window creation failed.\n");
glfwTerminate();
return;
} else
{
int major, minor, rev;
glfwMakeContextCurrent(pWindow);
#ifdef WIN_COMPILE
glewExperimental=GL_TRUE;
if (glewInit() != GLEW_OK)
{
fprintf(stderr, "GLEW initialization failed.\n");
return;
}
#endif
glfwGetVersion(&major, &minor, &rev);
fprintf(stderr, "OpenGL version recieved: %d.%d.%d.\n", major, minor, rev);
}
glfwSwapInterval(1);
glfwSetKeyCallback(pWindow, key_callback);
//After the openGL context is set up, initialize openGL
initializeDraw();
//Then load data into a texture
{
glGenTextures(1, &GLInfo._tex);
glBindTexture(GL_TEXTURE_2D, GLInfo._tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _width,
_height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
_buf);
GLuint tex_id = glGetUniformLocation(GLInfo._pid, "tex");
glUniform1i(tex_id, 0 /*GL_TEXTURE0*/);
}
glUseProgram(GLInfo._pid);
glBindVertexArray(GLInfo._vao);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, GLInfo._tex);
//ok we're ready. Let glfw do the msg loop and draw the quad
while (!glfwWindowShouldClose(pWindow))
{
glClear(GL_COLOR_BUFFER_BIT);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glfwSwapBuffers(pWindow);
glfwPollEvents();
}
/// Close OpenGL window and terminate GLFW
glfwDestroyWindow(pWindow);
cleanupDraw();
glfwTerminate();
}