raylib.IsShaderValid

Check if shader is valid (loaded on GPU)

Parameters

Parameter	Default Value	Note
shader

Return value

Condition	Return Value
(always)	number

Notes

Example

raylib.InitWindow 800, 600, "Shader Valid Demo"
shader = raylib.LoadShader("", "resources/grayscale.fs")
if raylib.IsShaderValid(shader) then
    print "Shader loaded successfully"
else
    print "Shader failed to load"
end if
raylib.UnloadShader shader
raylib.CloseWindow