16 lines
378 B
C
16 lines
378 B
C
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#include <math.h>
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#include "private.h"
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/* Set the Perspective */
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void gluPerspective(GLfloat angle, GLfloat aspect,
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GLfloat znear, GLfloat zfar) {
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GLfloat xmin, xmax, ymin, ymax;
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ymax = znear * tanf(angle * F_PI / 360.0f);
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ymin = -ymax;
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xmin = ymin * aspect;
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xmax = ymax * aspect;
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glFrustum(xmin, xmax, ymin, ymax, znear, zfar);
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}
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