I'm sure it's already somewhere...

OpenGL OpenGL: Advanced Coding
1

But I hit the 200 result limit, even when I refined my search as much as possible.

I just wanted to verify what I think is the correct way to handle multiple lights with stencil shadow volumes.

</font>[ol]
[li]Render to z-buffer[/li][li]for each light source[/li][ul][li]<font size=“2” face=“Verdana, Arial”>calculate shadow volumes[]draw them to stencil buffer[]draw lighting with depth test at GL_EQUAL, blended with (GL_ONE,GL_ONE)[/ul][/li]</font>[li]draw final texture pass[/li][/ol]<font size=“2” face=“Verdana, Arial”>The only bit that I wanted to verify was the lighting pass. Is that the right way to handle that, or am I mixing bits and pieces together the wrong way?

2

You can transport a step_3 in a step_1.

3

The plan was to add all of the lighting contributions, then use GL_MODULATE for the final texture pass, I left it out to simplify the flow chart.

But the chunk for the lighting contributions is correct? That’s really the only bit I was worried about.

My only other question is in regards to fragment shaders. Will blending still work correctly if I use a shader, or will I have to implement that on my own as well?

4

I think what the chunk for the lighting contributions is correct. And blender would be working correct.

5

http://www.angelfire.com/games5/duktroa/RealTimeShadowTutorial.htm

6

If number of lights is one, then the object who shadowed is black. But ambient or emission light?

7

The ambient will go in the first pass, if it’s needed. It’ll be determined per-scene, depending on the environment.

Thanks for the replies everyone, I’ll probably be back with more questions later, but ta-ta for now.