[Feature], Convert position of the 3d world to position to 2d pixel in the texture. about wickedengine HOT 3 CLOSED

You can use XMVector3Project: https://learn.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-xmvector3project

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Can you offset your (0,0,0) farther from camera, like at (0,0,1) for example? Because might be that camera near clip plane in projection matrix is causing the unexpected values, because your point is outside the near plane.

Btw this XMVector3Project function is just a helper over multiplying your world space point with the camera's viewProjection matrix. So you can also try this:

XMVECTOR worldpos = XMVectorSet(0,0,1);
XMVECTOR screenpos = XMVector3TransformCoord(worldpos, camera.GetViewProjection()); // to normalized device coordinates in [-1,1] range
screenpos = screenpos * XMVectorSet(0.5f, -0.5f, 1, 1) + XMVectorSet(0.5f, 0.5f, 0, 0); // [-1,1] -> [0,1] range and flip on Y
screenpos = screenpos * XMVectorSet(3840, 2160, 1, 1); // [0,1] range to pixel coordinates

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Thank you, it's probably my bad knowledge or I'm not configuring it correctly in the viewport, I don't know if it's the aspect ratio or the dpi but the result on the y axis is not correct I think, I'll show you the code and the result obtained and desired.

// Resolution -> width= 3840 --- height=2160 ---- dpi=144

Result obtained with input 3d pos (0,0,0) -> x=1920 | y=1454.122925 | z=0.009980
Result desired x=1920 | y=1080

Code used:
`
Viewport v;
v.width = GetInternalResolution().x;
v.height = GetInternalResolution().y;
v.min_depth = 0.0f;
v.max_depth = 1.0f;
v.top_left_x = 0.0f;
v.top_left_y = 0.0f;

EditorScene& e = GetCurrentEditorScene();

XMFLOAT3 in_v3 = XMFLOAT3(0.0f, 0.0f, 0.0f);
//XMVECTOR r_v = XMVector3Project(XMLoadFloat3(&in_v3), v.top_left_x, v.top_left_y, v.width, v.height, v.min_depth, v.max_depth, e.scene.camera.GetProjection(), e.scene.camera.GetView(), XMLoadFloat4x4(&e.camera_transform.world)));
XMVECTOR r_v = XMVector3Project(XMLoadFloat3(&in_v3), v.top_left_x, v.top_left_y, v.width, v.height, v.min_depth, v.max_depth, e.scene.camera.GetProjection(), e.scene.camera.GetView(), XMMatrixIdentity());

XMFLOAT3 r_pos;
XMStoreFloat3(&r_pos, r_v);`

I'm probably missing some dpi or aspect ratio calculation over z value, I've tried with several cameras and instead of using an identity matrix with the camera transformation world and I always get the same result.

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