picogl.renderer.legacy_glmesh

Classes

LegacyGLMeshNew	GL Mesh for Compatibility Profile (Legacy OpenGL)
LegacyGLMesh	GL Mesh fir Compatibility Profile

Module Contents

class picogl.renderer.legacy_glmesh.LegacyGLMeshNew(vertices: numpy.ndarray, faces: numpy.ndarray | None, colors: numpy.ndarray | None = None, normals: numpy.ndarray | None = None, uvs: numpy.ndarray | None = None, use_indices: bool = True)

GL Mesh for Compatibility Profile (Legacy OpenGL)

Keeps a similar interface to theIndexed version, but uses client-side arrays / legacy calls instead of VAOs/VBOs/EBOs.

vertices

use_indices = True

colors

normals

uvs

vao = None

index_count: int

_expanded_vertices = None

_expanded_colors = None

_expanded_normals = None

_expanded_uvs = None

classmethod from_mesh_data(mesh: MeshData) → LegacyGLMesh

_expand_to_non_indexed() → None

Expand indexed data to per-triangle vertex data for glDrawArrays.

upload() → None

Legacy GL uses client-side arrays; minimal setup is preserved for compatibility.

bind()

unbind()

delete()

Legacy GL doesn’t hold GPU resources in VAOs/VBOs; keep API for symmetry.

__enter__()

__exit__(exc_type, exc, tb)

draw(mode=GL_TRIANGLES) → None

Draw the mesh using Legacy GL calls.

class picogl.renderer.legacy_glmesh.LegacyGLMesh(vertices: numpy.ndarray, faces: numpy.ndarray, colors: numpy.ndarray | None = None, normals: numpy.ndarray | None = None, uvs: numpy.ndarray | None = None)

GL Mesh fir Compatibility Profile

GPU‐resident mesh: owns VAO/VBO/EBO/CBO/NBO for an indexed triangle mesh. It does not know anything about shaders or matrices.

vertices

colors

normals

uvs

vao: picogl.buffers.vertex.legacy.VertexBufferGroup | None = None

index_count: int = 0

classmethod from_mesh_data(mesh: MeshData) → LegacyGLMesh

Construct a GLMesh from a MeshData container.

Parameters:

mesh (MeshData) – Must have .vbo (Nx3), .ebo (Mx1), optional .cbo (Nx3), .nbo (Nx3), uvs (Nx2)

Returns:

Ready-to-upload mesh (GPU buffers are allocated only when upload() is called).

Return type:

LegacyGLMesh

upload() → None

Allocate & fill GPU buffers.

generate_dynamic_attributes()

generate_dynamic_attributes

Create layout that matches the VBOs being added

bind()

unbind()

delete()

Free GPU resources.

__enter__()

__exit__(exc_type, exc, tb)

draw(mode=GL_TRIANGLES) → None

Draw the mesh.