Usage Examples#

How to create a new shader cache extension for a new render delegate#

Store the pre-compiled shaders into cache\shadercache folder of the extensions.
Shaders must have been compiled with the current ShaderDb and contain a version file in cache\shadercache\common folder produced by shaderDb.
Implement the extension with the below snippet to register the search path:

import omni.ext
from omni.gpu_foundation_factory import ShaderCacheConfig

class ShaderCacheExt(omni.ext.IExt):
    def on_startup(self, ext_id):
        self.shadercache_config = ShaderCacheConfig()
        self.shadercache_config.setup_shadercache_locations(ext_id)

    def on_shutdown(self):
        self.shadercache_config = None