Game Development Community

Rendering to texture

by Justin Tolchin · in Torque Game Engine Advanced · 06/29/2005 (1:42 pm) · 3 replies

Hi all,

Would any of you graphics gurus out there be able to clue me in on how to do a render to texture in TSE? I want to replicate the mini-map functionality from the RTS kit and set up an overhead camera, render the terrain/water to a bitmap, and display that bitmap in a Gui control on the game screen. I have no idea how to use the GFX functions to do this. Any thoughts would be appreciated.

Thanks!
NextNext Thread
PrevPrevious Thread
More from Torque Game Engine Advanced


Associate Kyle Carter
#1
06/29/2005 (3:54 pm)
Tried looking at how other places that render to texture (water, refraction, reflection code) do it?

Torque Owner Justin Tolchin
#2
06/29/2005 (4:30 pm)
Hi Ben,

Well, I had been hunting around before I posted but I didn't see anything that made a lot of sense to me. I went back and started looking at the WaterBlock::updateReflection code and that seems to be what I need (I hope).

One part of it I don't understand, and thought maybe you might. What does this code do, and is it necessary?

// render a frame
...
...
...
   GFX->clear( GFXClearZBuffer | GFXClearStencil | GFXClearTarget, ColorI( 255, 255, 0 ), 1.0f, 0 );
...
...
...
   // cleanup
   GFX->clear( GFXClearZBuffer | GFXClearStencil, ColorI( 255, 0, 255 ), 1.0f, 0 );

Why is the color set to red/green for one and red/blue for the other? If I don't do this will it cause problems?

Thanks!

Torque Owner Brian Ramage
Black Jacket Games
#3
06/29/2005 (5:58 pm)
Those are set to various colors for debug reasons. They don't mean anything.