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Lines Matching defs:ymax

719     GLfloat xmin, xmax, ymin, ymax;
721     ymax = zNear * (GLfloat)tan(fovy * PI / 360);
722     ymin = -ymax;
724     xmax = ymax * aspect;
726     glFrustum(xmin, xmax, ymin, ymax, zNear, zFar);