Is quesa alive?

[Steven V. <is...@ma...>]

Hi all,

I just subscribed to this list, but I am not new to quesa. I have  
subscribed to more lists and forums, but I was just posting to dead  
threads for years! (that was about a year ago). Anyway I want to do an  
update to my game adrenalin racing. I noticed that the site quesa has  
been updated so that makes me believe that quesa is alive.

I have downloaded quesa 1.7 from sourceforge (I used to have 1.6).  
Version 1.7 fixed the following issues for me:

- Starting a race displays garbage on screen
- First 3 frames are flickering with window backgroundcolor => frame  
<=> backgroundcolor flicker (Quesa actually creates the DrawContext 3  
times)
- 2 player ghost/arcade crashes (is the error caused by the level  
picture overview?)

But it created 3 new Issues. Maybe someone can shed some light on this:

### Showroom rendering sometimes gets totally white and hogs up  
cpupower. I did a shark and found the following:
	If I render a trimesh which is texturemapped with a texture which  
displays the capabilities of the car __glTessErrorString(int) is called  
and takes up 15% 	of cpupower. The texture is created at runtime and is  
256x128 in size (and is only created once). The total function call  
path is:

__glTessErrorString(int)	gluScaleImageCTX	gluScaleImage	 
IRRenderer_Texture_ConvertSize	IRRenderer_Texture_ConvertImage	 
ir_texture_load(TQ3CachedTexture*)	 
ir_texture_cache_add(OpaqueTQ3Object*, TQ3InteractiveData*,  
OpaqueTQ3Object*,  
OpaqueTQ3Object*)	IRRenderer_Texture_Set	 
IRRenderer_Update_Shader_Surface	E3Renderer_Method_UpdateShader	 
e3view_stack_update(E3View*, unsigned  
long)	E3View_State_SetShaderSurface	 
e3shader_surface_submit(OpaqueTQ3Object*, long, OpaqueTQ3Object*, void  
const*)	e3view_submit_retained_render(E3View*,  
OpaqueTQ3Object*)	E3View_SubmitRetained	E3Object_Submit	Q3Object_Submit 
	IRGeometry_Attribute_Handler	IRGeometry_Submit_TriMesh	 
E3Renderer_Method_SubmitGeometry	e3geometry_render(OpaqueTQ3Object*,  
long, OpaqueTQ3Object*, void  
const*)	e3view_submit_retained_render(E3View*,  
OpaqueTQ3Object*)	E3View_SubmitRetained	E3Object_Submit	Q3Object_Submit 
	e3group_submit_contents(OpaqueTQ3Object*, long, E3Group*, void  
const*)	e3group_display_submit_contents(OpaqueTQ3Object*, long,  
OpaqueTQ3Object*, void const*)	e3view_submit_retained_render(E3View*,  
OpaqueTQ3Object*)	E3View_SubmitRetained	E3DisplayGroup_Submit	 
Q3DisplayGroup_Submit	RenderOverview	MakeShowRoom	ArcadeScreen

### Cars no longer have wheels
	I started debugging this, but now it even crashes when I load my  
wheels. The code that crashes is: e3group_display_ordered_duplicate  
when I duplicate 	a wheel trimesh from a list of preloaded wheels to  
use for the car.
### Background scenery images dissappear
	I use a texture in the order of 1024x768 as a background scenery for  
the environment. This is actually a trimesh that is texture 	mapped. I  
put two of them next to each other to have a seamless scrolling  
background. Now it happens that the textures start flickering.  
Sometimes they 	are rendered correctly and sometimes they are  
completely blue. Also sometimes the left one does render but not the  
right one or visa versa.

All this used to work on previous versions of quesa and Quickdraw 3D 0S9

Steven Verstoep
www.revaro.net