MrMonopoly/raylib
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add GetModelBoundingBox function

Browse Source
This commit is contained in:
Uneven Prankster 2021-07-27 22:45:40 -03:00
parent e9c7ab925f
commit a8329d90bb
2 changed files with 36 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
src/models.c
View File

@ -2647,6 +2647,41 @@ BoundingBox GetMeshBoundingBox(Mesh mesh)
return box;
}
// Compute model bounding box limits
BoundingBox GetModelBoundingBox(Model model)
{
// Get number of meshes and create our bounding box
int meshCount = model.meshCount;
BoundingBox bounds = { 0 };
if (meshCount < 1)
{
// No mesh to compute bounds from
return bounds;
}else{
// Start from the first mesh's bounding box
Vector3 tPos;
bounds = GetMeshBoundingBox(model.meshes[0]);
for (int i = 1; i < meshCount;i++)
{
// Get each mesh's bounding box to find the largest extents
BoundingBox tempBounds = GetMeshBoundingBox(model.meshes[i]);
tPos.x = bounds.min.x < tempBounds.min.x ? bounds.min.x : tempBounds.min.x;
tPos.y = bounds.min.y < tempBounds.min.y ? bounds.min.y : tempBounds.min.y;
tPos.z = bounds.min.z < tempBounds.min.z ? bounds.min.z : tempBounds.min.z;
bounds.min = tPos;
tPos.x = bounds.max.x > tempBounds.max.x ? bounds.max.x : tempBounds.max.x;
tPos.y = bounds.max.y > tempBounds.max.y ? bounds.max.y : tempBounds.max.y;
tPos.z = bounds.max.z > tempBounds.max.z ? bounds.max.z : tempBounds.max.z;
bounds.max = tPos;
}
}
return bounds;
}
// Compute mesh tangents
// NOTE: To calculate mesh tangents and binormals we need mesh vertex positions and texture coordinates
// Implementation base don: https://answers.unity.com/questions/7789/calculating-tangents-vector4.html

1
src/raylib.h
View File

@ -1420,6 +1420,7 @@ RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize);
// Mesh manipulation functions
RLAPI BoundingBox GetMeshBoundingBox(Mesh mesh); // Compute mesh bounding box limits
RLAPI BoundingBox GetModelBoundingBox(Model model); // Compute model bounding box limits
RLAPI void GenMeshTangents(Mesh *mesh); // Compute mesh tangents
RLAPI void GenMeshBinormals(Mesh *mesh); // Compute mesh binormals