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Quellcode

ENGINE_API CMatrix MCamera(CVector3D pos, CVector3D lookAt, CVector3D up) {
    CVector3D zAxis(V3Normalize(lookAt - pos));
    CVector3D xAxis(V3Normalize(V3Cross(up, zAxis)));
    CVector3D yAxis(V3Normalize(V3Cross(zAxis, xAxis)));
    
    float m[] = {
        xAxis.x, yAxis.x, zAxis.x, 0.0f, 
        xAxis.y, yAxis.y, zAxis.y, 0.0f, 
        xAxis.z, yAxis.z, zAxis.z, 0.0f, 
        0.0f, 0.0f, 0.0f, 1.0f
    };

    return MTranslation(-pos) * CMatrix(m);
}

ENGINE_API CMatrix MRotationX(float f) {
    float m[] = {
        1.0f, 0.0f, 0.0f, 0.0f, 
        0.0f, cosf(f), -sinf(f), 0.0f, 
        0.0f, sinf(f), cosf(f), 0.0f, 
        0.0f, 0.0f, 0.0f, 1.0f
    };

    return CMatrix(m);
}

Quellcode

MProjection();
MLoadMatrix(MPerspective(45.0f, float(800 / 800), 0.1f, 100.0f)); // MLoadMatrix = glLoadMatrix

MModelView();

CMatrix matModel = MRotationX(45.0f) * MTranslation(CVector3D(0.0f, 0.0f, -5.0f));
CMatrix matView = MCamera(CVector3D(0.0f, 0.0f, 0.0f), CVector3D(0.0f, 0.0f, -1.0f), CVector3D(0.0f, 1.0f, 0.0f));

MLoadMatrix(matModel * matView);