Re: [ZE-dev] Some requests

[James T. <ja...@co...>]

>> - I also believe that it would be better to use GL_LINEAR for Image
>> Stretching not GL_NEAREST. Maybe u could put an extra parameter in the
>> function Resize/Stretch.
>>  
>

In SDLGL_Util.cpp, I changed the lines
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 to
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
and noticed a visible difference.   I'm not an OpenGL expert, so why 
would anyone want to use GL_NEAREST?

 From what I've seen I propose simply changing these lines and nothing 
else but if I am going to bother leaving GL_NEAREST, instead of forcing the
change inside Resize/Stretch, would it not be best to simply have that 
as an option defined for each ZImage, that way a minimal number of calls 
to glTexParamteri would be required, and none would be required inside 
the rendering loop in most situations, which I'd consider a good thing.

Feel free to share any thoughts on this, the finer points of OpenGL are 
certainly not my specialty.

          -James