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changed world to screen

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Orange
2024-08-28 17:50:22 +03:00
parent 74372a9f38
commit f447752c6f
1 changed files with 5 additions and 10 deletions
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15
source/projection/Camera.cpp
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@@ -38,23 +38,18 @@ namespace omath::projection
Matrix Camera::GetProjectionMatrix() const Matrix Camera::GetProjectionMatrix() const
{ {
const float right = std::tan(angles::DegreesToRadians(m_fieldOfView) / 2.f); const float fovHalfTan = std::tan(angles::DegreesToRadians(m_fieldOfView) / 2.f);
const float left = -right; const auto aspectRatio = m_viewPort.x / m_viewPort.y;
const float verticalFov = angles::DegreesToRadians(m_fieldOfView) * (m_viewPort.y / m_viewPort.x);
const float top = std::tan(verticalFov / 2.f);
const float bottom = -top;
const auto far = m_farPlaneDistance; const auto far = m_farPlaneDistance;
const auto near = m_nearPlaneDistance; const auto near = m_nearPlaneDistance;
return Matrix( return Matrix(
{ {
{GetFloat1() * 2.f * near / (right - left), 0.f, (right + left) / (right - left), 0.f}, {1.f / (aspectRatio*fovHalfTan), 0.f, 0.f, 0.f},
{0.f, GetFloat1() * 2.f * near / (top - bottom), (top + bottom) / (top - bottom), 0.f}, {0.f, 1.f / fovHalfTan, 0.f, 0.f},
{0.f, 0.f, (far + near) / (far - near), 2.f * near * far / (far - near)}, {0.f, 0.f, (far + near) / (far - near), 2.f * near * far / (far - near)},
{0.f, 0.f, 1.f, 0.f}, {0.f, 0.f, -1.f, 0.f},
}); });
} }