- Create _create_quad_vao() method that creates VAO with vertex buffer
- Use explicit vertex attributes (a_position, a_texcoord) in shaders
- Bind VAO before glDrawArrays calls
- Use ctypes for proper buffer sizing
The issue is that imgui-bundle uses OpenGL 3.3 core profile which doesn't
support glBegin/glEnd. The shaders require VAO setup which is failing.
This needs proper OpenGL debugging in the imgui-bundle context.
The frosted glass effect crashes with GLError 1282 'invalid operation'
when calling glDrawArrays. This is likely due to missing VAO setup
or OpenGL context issues in the hello_imgui/imgui-bundle environment.
DISABLED the effect by default to allow the app to run.
Feature needs proper OpenGL VAO setup to work.
- Add compile_deepsea_shader() with animated underwater-like GLSL shader
- Add render_deepsea_to_fbo() to render background to scene FBO
- Deep Sea shader features: FBM noise, animated blobs, caustic lines, vignette
- Add deepsea_program to cleanup() for proper resource management
- Add 2 new tests for Deep Sea shader compilation and FBO rendering
Task: Phase 1, Task 2 of frosted_glass_20260313 track
