simage library

COIN3D simage library (

    • COIN3D simage가 제공하는 이미지 포멧은 JPEG, PNG, GIF, TIFF, RGB, PIC, TGA, EPS등 다양하다.
    • COIN3D의 simage library를 사용하려면, 프로젝트에 additional library and include directory를 추가해야한다. 기존 include 와 lib 디렉토리 안에 simage.h 과 simage1d.lib를 복사한다.
    • 그리고, 텍스쳐 이미지 로딩을 위해 프로젝트에 simage1.lib 라이브러리를 링크한다.


사용자 삽입 이미지
Ambient/Diffuse/Specular (From left to right: diffuse; ambient; diffuse + ambient; diffuse+ambient+specular) from

사용자 삽입 이미지Light sources (From left to right: directional; point; and spotlights) from


Z-fighting, also called stitching, is a phenomenon in 3D rendering that occurs when two or more primitives have similar values in the z-buffer.  This problem is usually caused by limited sub-pixel precision and floating point and fixed point round-off errors


Comparison of depth precision

There is very high precision at the near plane, but very little precision at the far plane. If the range [-n, -f] is getting larger, it causes a depth precision problem (z-fighting); a small change of ze around the far plane does not affect on zn value. The distance between n and f should be short as possible to minimize the depth buffer precision problem.