Shadows help ground models in a scene and assist with depth perception. QGL really needs shadows.
Current best practice revolves around using the stencil buffer and projecting a flattened model onto surrounding geometry, creating the illusion of a shadow. The technique often referred to as a shadow volume algorithm.
A different algorithm, with different tradeoffs, is the shadow mapping algorithm. There is even hardware support available for implementing this technique.
I'd like to implement shadow mapping in QGL, as it is likely to be much faster than a shadow volume technique. To do this, I need to get a hold of the ARB_shadow extension, which PyOpenGL doesn't (yet?) provide. I'll probably have to use ctypes, and talk to the libGL dll directly.
Subscribe to:
Post Comments (Atom)
Popular Posts
-
These are the robots I've been working on for the last 12 months. They each weigh about 11 tonnes and have a 17 meter reach. The control... -
This hard-to-see screenshot is a Generic Node Graph Editing framework I'm building. I'm hoping it can be used for any kind of node... -
After my last post, I decided to benchmark the scaling properties of Stackless, Kamaelia, Fibra using the same hackysack algorithm. Left axi... -
So, you've created a car prefab using WheelCollider components, and now you can apply a motorTorque to make the whole thing move along. ... -
It is about 8 degrees C this morning. So cold, especially when last week we had high twenties. To help solve the problem, a friend suggeste...
-
At the last few GameJams, I've seen an increase in the use of RAD game tools, some of them even being developed by the participants them...
-
MiddleMan: A Pub/Sub and Request/Response server in Go. This is my first Go project. It is a rewrite of an existing Python server, based o...
-
I've just uploaded Fibra 2 to the cheeseshop. Fibra 2 includes the promised non-blocking plugin, which allows a generator based task to...
-
#!/usr/bin/env python import io import asyncio import websockets import logging import collections logger = logging.getLogger('w...
-
I've just read a newspaper article (courtesy of Kranzky ) from WA Business News documenting the malfeasance, gross negligence and misc...
1 comment:
about shadows, spherical harmonics is another path that could be followed. It's quite complex ( VERY math intensive) but allow global illumination.
so when you have few objects (FPS) -> shadow volume, many (RTS) -> spherical harmonics.
I am not an expert and cannot go much farther thant that but google should help you.
Post a Comment