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reverted Vector3Transform back

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This commit is contained in:
Brian-E 2023-09-27 14:53:33 +01:00
parent b9fe7a4aa0
commit be3b4dacdd
1 changed files with 6 additions and 3 deletions
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9
src/rcore.c
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@ -2963,14 +2963,17 @@ Vector2 GetWorldToScreenEx(Vector3 position, Camera camera, int width, int heigh
// Calculate view matrix from camera look at (and transpose it)
Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up);
// Convert world position vector to quaternion
Quaternion worldPos = { position.x, position.y, position.z, 1.0f };
// Transform world position to view
Vector3 worldPos = Vector3Transform(position, matView);
worldPos = QuaternionTransform(worldPos, matView);
// Transform result to projection (clip space position)
worldPos = Vector3Transform(worldPos, matProj);
worldPos = QuaternionTransform(worldPos, matProj);
// Calculate normalized device coordinates (inverted y)
Vector3 ndcPos = { worldPos.x, -worldPos.y, worldPos.z };
Vector3 ndcPos = { worldPos.x/worldPos.w, -worldPos.y/worldPos.w, worldPos.z/worldPos.w };
// Calculate 2d screen position vector
Vector2 screenPosition = { (ndcPos.x + 1.0f)/2.0f*(float)width, (ndcPos.y + 1.0f)/2.0f*(float)height };