26 lines
550 B
C
26 lines
550 B
C
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#include <stdio.h>
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#include "camera.h"
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#include "v3.h"
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int main(void)
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{
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v3_t lookat = {{0,0,0}};
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v3_t eye = {{0,-20,0}};
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v3_t up = {{0,0,1}};
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float fov = 20;
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camera_t * camera = camera_new(eye, lookat, up, fov);
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for (float x = -5 ; x <= 5 ; x += 5)
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for (float y = -25 ; y < 55 ; y += 5 )
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{
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v3_t v_in = {{ x, y, 5 }};
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v3_t v_out;
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int onscreen = camera_project(camera, &v_in, &v_out);
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if (!onscreen && y > eye.p[1])
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fprintf(stderr, "false positive\n");
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if (onscreen && y < eye.p[1])
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fprintf(stderr, "false negative\n");
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}
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}
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