How do I get smooth cast shadows in Blender 2.49b? I can render at OSA 16, Q: 100, 2560x1600 JPG RGB, 100%, and still get grainy shadows, especially at the edges. Yet the rest of the render is smooth. The surface accepting the cast shadow is smooth, so it’s not producing the grain.
Other buttons in Render pushed: Shado, EnvMa, Ray, Radio.
Grainy shadows are usually a result of not using sufficient samples either for the lamp (in the case of soft shadows) or in the final gather (under world settings, in the case of raytraced AO shadows).
For future reference, this belongs in the support subforums.