set up modelview matrix, bigger window
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parent
13cb39e79e
commit
ba2c1d9c60
@ -3,14 +3,22 @@
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#include <GL/gl.h>
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#include <GL/gl.h>
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#include <GL/glu.h>
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#include <GL/glu.h>
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#define WIDTH 500
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#define WIDTH 800
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#define HEIGHT 500
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#define HEIGHT 600
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void init(void)
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GLuint vs, fs;
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void init(int width, int height)
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{
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{
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glClearColor (0.0, 0.0, 0.0, 0.0);
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glClearColor (0.0, 0.0, 0.0, 0.0);
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glEnable(GL_DEPTH_TEST);
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glEnable(GL_DEPTH_TEST);
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glViewport(0, 0, WIDTH, HEIGHT);
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glViewport(0, 0, WIDTH, HEIGHT);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho((float)-width/(float)height, (float)width/(float)height,
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-1, 1, -1, 1);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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}
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}
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void display(void)
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void display(void)
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@ -39,7 +47,7 @@ int main(int argc, char *argv[])
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}
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}
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SDL_WM_SetCaption(argv[0], argv[0]);
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SDL_WM_SetCaption(argv[0], argv[0]);
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init();
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init(WIDTH, HEIGHT);
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display();
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display();
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SDL_Event event;
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SDL_Event event;
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while (SDL_WaitEvent(&event))
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while (SDL_WaitEvent(&event))
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