Created
September 24, 2010 01:12
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// | |
// CNWorldView+Drawing.m | |
// Concorde | |
// | |
// Created by Dylan Lukes on 9/22/10. | |
// Copyright 2010 Dylan Lukes. All rights reserved. | |
// | |
#import "CNWorldView+Drawing.h" | |
#import "Common.h" | |
#import <OpenGL/gl.h> | |
#import <GLUT/GLUT.h> | |
@implementation CNWorldView (Drawing) | |
- (void)setupOpenGL{ | |
GLfloat width = [self bounds].size.width; | |
GLfloat height = [self bounds].size.height; | |
glMatrixMode(GL_PROJECTION); | |
glLoadIdentity(); | |
glOrtho(-2*(width/height), 2*(width/height), | |
-2.0f, 2.0f, | |
-2.0f, 2.0f); | |
glMatrixMode(GL_MODELVIEW); | |
glLoadIdentity(); | |
} | |
- (CVReturn)drawWithGL{ | |
static const Vertex3D vertices[] = { | |
{-1.0f, 0.0f, -1.0f}, | |
{-1.0f, 0.0f, 1.0f}, | |
{ 1.0f, 0.0f, -1.0f}, | |
{ 1.0f, 0.0f, 1.0f}, | |
}; | |
[[self openGLContext] makeCurrentContext]; | |
// Reset matrices | |
glLoadIdentity(); | |
glClearColor(0.0, 0.0, 0.0, 1.0); | |
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | |
// Perform isometric axis rotations | |
glRotatef(ISOANGLE, 1.0f, 0.0f, 0.0f); // around X 45° | |
glRotatef(-45.0f, 0.0f, 1.0f, 0.0f); // around Y 45° + rotation offset | |
glEnableClientState(GL_VERTEX_ARRAY); | |
glColor4f(0.41, 0.66, 0.25, 1.0); | |
glVertexPointer(3, GL_FLOAT, 0, vertices); | |
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); | |
drawAxes(); | |
//glColor4f(0.41, 0.66, 0.25, 1.0); | |
//glutWireCube(1); | |
glDisableClientState(GL_VERTEX_ARRAY); | |
glSwapAPPLE(); | |
return kCVReturnSuccess; | |
} | |
@end |
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