diff options
Diffstat (limited to 'glm-master/glm/ext/matrix_clip_space.inl')
-rw-r--r-- | glm-master/glm/ext/matrix_clip_space.inl | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/glm-master/glm/ext/matrix_clip_space.inl b/glm-master/glm/ext/matrix_clip_space.inl deleted file mode 100644 index 2a7f612..0000000 --- a/glm-master/glm/ext/matrix_clip_space.inl +++ /dev/null @@ -1,555 +0,0 @@ -namespace glm -{ - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> ortho(T left, T right, T bottom, T top) - { - mat<4, 4, T, defaultp> Result(static_cast<T>(1)); - Result[0][0] = static_cast<T>(2) / (right - left); - Result[1][1] = static_cast<T>(2) / (top - bottom); - Result[2][2] = - static_cast<T>(1); - Result[3][0] = - (right + left) / (right - left); - Result[3][1] = - (top + bottom) / (top - bottom); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoLH_ZO(T left, T right, T bottom, T top, T zNear, T zFar) - { - mat<4, 4, T, defaultp> Result(1); - Result[0][0] = static_cast<T>(2) / (right - left); - Result[1][1] = static_cast<T>(2) / (top - bottom); - Result[2][2] = static_cast<T>(1) / (zFar - zNear); - Result[3][0] = - (right + left) / (right - left); - Result[3][1] = - (top + bottom) / (top - bottom); - Result[3][2] = - zNear / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoLH_NO(T left, T right, T bottom, T top, T zNear, T zFar) - { - mat<4, 4, T, defaultp> Result(1); - Result[0][0] = static_cast<T>(2) / (right - left); - Result[1][1] = static_cast<T>(2) / (top - bottom); - Result[2][2] = static_cast<T>(2) / (zFar - zNear); - Result[3][0] = - (right + left) / (right - left); - Result[3][1] = - (top + bottom) / (top - bottom); - Result[3][2] = - (zFar + zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoRH_ZO(T left, T right, T bottom, T top, T zNear, T zFar) - { - mat<4, 4, T, defaultp> Result(1); - Result[0][0] = static_cast<T>(2) / (right - left); - Result[1][1] = static_cast<T>(2) / (top - bottom); - Result[2][2] = - static_cast<T>(1) / (zFar - zNear); - Result[3][0] = - (right + left) / (right - left); - Result[3][1] = - (top + bottom) / (top - bottom); - Result[3][2] = - zNear / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoRH_NO(T left, T right, T bottom, T top, T zNear, T zFar) - { - mat<4, 4, T, defaultp> Result(1); - Result[0][0] = static_cast<T>(2) / (right - left); - Result[1][1] = static_cast<T>(2) / (top - bottom); - Result[2][2] = - static_cast<T>(2) / (zFar - zNear); - Result[3][0] = - (right + left) / (right - left); - Result[3][1] = - (top + bottom) / (top - bottom); - Result[3][2] = - (zFar + zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoZO(T left, T right, T bottom, T top, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return orthoLH_ZO(left, right, bottom, top, zNear, zFar); -# else - return orthoRH_ZO(left, right, bottom, top, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoNO(T left, T right, T bottom, T top, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return orthoLH_NO(left, right, bottom, top, zNear, zFar); -# else - return orthoRH_NO(left, right, bottom, top, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoLH(T left, T right, T bottom, T top, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return orthoLH_ZO(left, right, bottom, top, zNear, zFar); -# else - return orthoLH_NO(left, right, bottom, top, zNear, zFar); -# endif - - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> orthoRH(T left, T right, T bottom, T top, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return orthoRH_ZO(left, right, bottom, top, zNear, zFar); -# else - return orthoRH_NO(left, right, bottom, top, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> ortho(T left, T right, T bottom, T top, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_ZO - return orthoLH_ZO(left, right, bottom, top, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_NO - return orthoLH_NO(left, right, bottom, top, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_ZO - return orthoRH_ZO(left, right, bottom, top, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_NO - return orthoRH_NO(left, right, bottom, top, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumLH_ZO(T left, T right, T bottom, T top, T nearVal, T farVal) - { - mat<4, 4, T, defaultp> Result(0); - Result[0][0] = (static_cast<T>(2) * nearVal) / (right - left); - Result[1][1] = (static_cast<T>(2) * nearVal) / (top - bottom); - Result[2][0] = -(right + left) / (right - left); - Result[2][1] = -(top + bottom) / (top - bottom); - Result[2][2] = farVal / (farVal - nearVal); - Result[2][3] = static_cast<T>(1); - Result[3][2] = -(farVal * nearVal) / (farVal - nearVal); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumLH_NO(T left, T right, T bottom, T top, T nearVal, T farVal) - { - mat<4, 4, T, defaultp> Result(0); - Result[0][0] = (static_cast<T>(2) * nearVal) / (right - left); - Result[1][1] = (static_cast<T>(2) * nearVal) / (top - bottom); - Result[2][0] = -(right + left) / (right - left); - Result[2][1] = -(top + bottom) / (top - bottom); - Result[2][2] = (farVal + nearVal) / (farVal - nearVal); - Result[2][3] = static_cast<T>(1); - Result[3][2] = - (static_cast<T>(2) * farVal * nearVal) / (farVal - nearVal); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumRH_ZO(T left, T right, T bottom, T top, T nearVal, T farVal) - { - mat<4, 4, T, defaultp> Result(0); - Result[0][0] = (static_cast<T>(2) * nearVal) / (right - left); - Result[1][1] = (static_cast<T>(2) * nearVal) / (top - bottom); - Result[2][0] = (right + left) / (right - left); - Result[2][1] = (top + bottom) / (top - bottom); - Result[2][2] = farVal / (nearVal - farVal); - Result[2][3] = static_cast<T>(-1); - Result[3][2] = -(farVal * nearVal) / (farVal - nearVal); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumRH_NO(T left, T right, T bottom, T top, T nearVal, T farVal) - { - mat<4, 4, T, defaultp> Result(0); - Result[0][0] = (static_cast<T>(2) * nearVal) / (right - left); - Result[1][1] = (static_cast<T>(2) * nearVal) / (top - bottom); - Result[2][0] = (right + left) / (right - left); - Result[2][1] = (top + bottom) / (top - bottom); - Result[2][2] = - (farVal + nearVal) / (farVal - nearVal); - Result[2][3] = static_cast<T>(-1); - Result[3][2] = - (static_cast<T>(2) * farVal * nearVal) / (farVal - nearVal); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumZO(T left, T right, T bottom, T top, T nearVal, T farVal) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return frustumLH_ZO(left, right, bottom, top, nearVal, farVal); -# else - return frustumRH_ZO(left, right, bottom, top, nearVal, farVal); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumNO(T left, T right, T bottom, T top, T nearVal, T farVal) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return frustumLH_NO(left, right, bottom, top, nearVal, farVal); -# else - return frustumRH_NO(left, right, bottom, top, nearVal, farVal); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumLH(T left, T right, T bottom, T top, T nearVal, T farVal) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return frustumLH_ZO(left, right, bottom, top, nearVal, farVal); -# else - return frustumLH_NO(left, right, bottom, top, nearVal, farVal); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustumRH(T left, T right, T bottom, T top, T nearVal, T farVal) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return frustumRH_ZO(left, right, bottom, top, nearVal, farVal); -# else - return frustumRH_NO(left, right, bottom, top, nearVal, farVal); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> frustum(T left, T right, T bottom, T top, T nearVal, T farVal) - { -# if GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_ZO - return frustumLH_ZO(left, right, bottom, top, nearVal, farVal); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_NO - return frustumLH_NO(left, right, bottom, top, nearVal, farVal); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_ZO - return frustumRH_ZO(left, right, bottom, top, nearVal, farVal); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_NO - return frustumRH_NO(left, right, bottom, top, nearVal, farVal); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveRH_ZO(T fovy, T aspect, T zNear, T zFar) - { - assert(abs(aspect - std::numeric_limits<T>::epsilon()) > static_cast<T>(0)); - - T const tanHalfFovy = tan(fovy / static_cast<T>(2)); - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = static_cast<T>(1) / (aspect * tanHalfFovy); - Result[1][1] = static_cast<T>(1) / (tanHalfFovy); - Result[2][2] = zFar / (zNear - zFar); - Result[2][3] = - static_cast<T>(1); - Result[3][2] = -(zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveRH_NO(T fovy, T aspect, T zNear, T zFar) - { - assert(abs(aspect - std::numeric_limits<T>::epsilon()) > static_cast<T>(0)); - - T const tanHalfFovy = tan(fovy / static_cast<T>(2)); - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = static_cast<T>(1) / (aspect * tanHalfFovy); - Result[1][1] = static_cast<T>(1) / (tanHalfFovy); - Result[2][2] = - (zFar + zNear) / (zFar - zNear); - Result[2][3] = - static_cast<T>(1); - Result[3][2] = - (static_cast<T>(2) * zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveLH_ZO(T fovy, T aspect, T zNear, T zFar) - { - assert(abs(aspect - std::numeric_limits<T>::epsilon()) > static_cast<T>(0)); - - T const tanHalfFovy = tan(fovy / static_cast<T>(2)); - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = static_cast<T>(1) / (aspect * tanHalfFovy); - Result[1][1] = static_cast<T>(1) / (tanHalfFovy); - Result[2][2] = zFar / (zFar - zNear); - Result[2][3] = static_cast<T>(1); - Result[3][2] = -(zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveLH_NO(T fovy, T aspect, T zNear, T zFar) - { - assert(abs(aspect - std::numeric_limits<T>::epsilon()) > static_cast<T>(0)); - - T const tanHalfFovy = tan(fovy / static_cast<T>(2)); - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = static_cast<T>(1) / (aspect * tanHalfFovy); - Result[1][1] = static_cast<T>(1) / (tanHalfFovy); - Result[2][2] = (zFar + zNear) / (zFar - zNear); - Result[2][3] = static_cast<T>(1); - Result[3][2] = - (static_cast<T>(2) * zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveZO(T fovy, T aspect, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return perspectiveLH_ZO(fovy, aspect, zNear, zFar); -# else - return perspectiveRH_ZO(fovy, aspect, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveNO(T fovy, T aspect, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return perspectiveLH_NO(fovy, aspect, zNear, zFar); -# else - return perspectiveRH_NO(fovy, aspect, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveLH(T fovy, T aspect, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return perspectiveLH_ZO(fovy, aspect, zNear, zFar); -# else - return perspectiveLH_NO(fovy, aspect, zNear, zFar); -# endif - - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveRH(T fovy, T aspect, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return perspectiveRH_ZO(fovy, aspect, zNear, zFar); -# else - return perspectiveRH_NO(fovy, aspect, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspective(T fovy, T aspect, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_ZO - return perspectiveLH_ZO(fovy, aspect, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_NO - return perspectiveLH_NO(fovy, aspect, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_ZO - return perspectiveRH_ZO(fovy, aspect, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_NO - return perspectiveRH_NO(fovy, aspect, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovRH_ZO(T fov, T width, T height, T zNear, T zFar) - { - assert(width > static_cast<T>(0)); - assert(height > static_cast<T>(0)); - assert(fov > static_cast<T>(0)); - - T const rad = fov; - T const h = glm::cos(static_cast<T>(0.5) * rad) / glm::sin(static_cast<T>(0.5) * rad); - T const w = h * height / width; ///todo max(width , Height) / min(width , Height)? - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = w; - Result[1][1] = h; - Result[2][2] = zFar / (zNear - zFar); - Result[2][3] = - static_cast<T>(1); - Result[3][2] = -(zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovRH_NO(T fov, T width, T height, T zNear, T zFar) - { - assert(width > static_cast<T>(0)); - assert(height > static_cast<T>(0)); - assert(fov > static_cast<T>(0)); - - T const rad = fov; - T const h = glm::cos(static_cast<T>(0.5) * rad) / glm::sin(static_cast<T>(0.5) * rad); - T const w = h * height / width; ///todo max(width , Height) / min(width , Height)? - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = w; - Result[1][1] = h; - Result[2][2] = - (zFar + zNear) / (zFar - zNear); - Result[2][3] = - static_cast<T>(1); - Result[3][2] = - (static_cast<T>(2) * zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovLH_ZO(T fov, T width, T height, T zNear, T zFar) - { - assert(width > static_cast<T>(0)); - assert(height > static_cast<T>(0)); - assert(fov > static_cast<T>(0)); - - T const rad = fov; - T const h = glm::cos(static_cast<T>(0.5) * rad) / glm::sin(static_cast<T>(0.5) * rad); - T const w = h * height / width; ///todo max(width , Height) / min(width , Height)? - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = w; - Result[1][1] = h; - Result[2][2] = zFar / (zFar - zNear); - Result[2][3] = static_cast<T>(1); - Result[3][2] = -(zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovLH_NO(T fov, T width, T height, T zNear, T zFar) - { - assert(width > static_cast<T>(0)); - assert(height > static_cast<T>(0)); - assert(fov > static_cast<T>(0)); - - T const rad = fov; - T const h = glm::cos(static_cast<T>(0.5) * rad) / glm::sin(static_cast<T>(0.5) * rad); - T const w = h * height / width; ///todo max(width , Height) / min(width , Height)? - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = w; - Result[1][1] = h; - Result[2][2] = (zFar + zNear) / (zFar - zNear); - Result[2][3] = static_cast<T>(1); - Result[3][2] = - (static_cast<T>(2) * zFar * zNear) / (zFar - zNear); - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovZO(T fov, T width, T height, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return perspectiveFovLH_ZO(fov, width, height, zNear, zFar); -# else - return perspectiveFovRH_ZO(fov, width, height, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovNO(T fov, T width, T height, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return perspectiveFovLH_NO(fov, width, height, zNear, zFar); -# else - return perspectiveFovRH_NO(fov, width, height, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovLH(T fov, T width, T height, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return perspectiveFovLH_ZO(fov, width, height, zNear, zFar); -# else - return perspectiveFovLH_NO(fov, width, height, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFovRH(T fov, T width, T height, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_ZO_BIT - return perspectiveFovRH_ZO(fov, width, height, zNear, zFar); -# else - return perspectiveFovRH_NO(fov, width, height, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> perspectiveFov(T fov, T width, T height, T zNear, T zFar) - { -# if GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_ZO - return perspectiveFovLH_ZO(fov, width, height, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_LH_NO - return perspectiveFovLH_NO(fov, width, height, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_ZO - return perspectiveFovRH_ZO(fov, width, height, zNear, zFar); -# elif GLM_CONFIG_CLIP_CONTROL == GLM_CLIP_CONTROL_RH_NO - return perspectiveFovRH_NO(fov, width, height, zNear, zFar); -# endif - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> infinitePerspectiveRH(T fovy, T aspect, T zNear) - { - T const range = tan(fovy / static_cast<T>(2)) * zNear; - T const left = -range * aspect; - T const right = range * aspect; - T const bottom = -range; - T const top = range; - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = (static_cast<T>(2) * zNear) / (right - left); - Result[1][1] = (static_cast<T>(2) * zNear) / (top - bottom); - Result[2][2] = - static_cast<T>(1); - Result[2][3] = - static_cast<T>(1); - Result[3][2] = - static_cast<T>(2) * zNear; - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> infinitePerspectiveLH(T fovy, T aspect, T zNear) - { - T const range = tan(fovy / static_cast<T>(2)) * zNear; - T const left = -range * aspect; - T const right = range * aspect; - T const bottom = -range; - T const top = range; - - mat<4, 4, T, defaultp> Result(T(0)); - Result[0][0] = (static_cast<T>(2) * zNear) / (right - left); - Result[1][1] = (static_cast<T>(2) * zNear) / (top - bottom); - Result[2][2] = static_cast<T>(1); - Result[2][3] = static_cast<T>(1); - Result[3][2] = - static_cast<T>(2) * zNear; - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> infinitePerspective(T fovy, T aspect, T zNear) - { -# if GLM_CONFIG_CLIP_CONTROL & GLM_CLIP_CONTROL_LH_BIT - return infinitePerspectiveLH(fovy, aspect, zNear); -# else - return infinitePerspectiveRH(fovy, aspect, zNear); -# endif - } - - // Infinite projection matrix: http://www.terathon.com/gdc07_lengyel.pdf - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> tweakedInfinitePerspective(T fovy, T aspect, T zNear, T ep) - { - T const range = tan(fovy / static_cast<T>(2)) * zNear; - T const left = -range * aspect; - T const right = range * aspect; - T const bottom = -range; - T const top = range; - - mat<4, 4, T, defaultp> Result(static_cast<T>(0)); - Result[0][0] = (static_cast<T>(2) * zNear) / (right - left); - Result[1][1] = (static_cast<T>(2) * zNear) / (top - bottom); - Result[2][2] = ep - static_cast<T>(1); - Result[2][3] = static_cast<T>(-1); - Result[3][2] = (ep - static_cast<T>(2)) * zNear; - return Result; - } - - template<typename T> - GLM_FUNC_QUALIFIER mat<4, 4, T, defaultp> tweakedInfinitePerspective(T fovy, T aspect, T zNear) - { - return tweakedInfinitePerspective(fovy, aspect, zNear, epsilon<T>()); - } -}//namespace glm |