Help Please - Blurry Image

#1 Hi Patryck,

I would presume this is something to do with the basic material antialiasing the images. As far as I can see the only way to disable it would be to create a new material with it disabled. I may well be wrong on this though.

#2 Heya Patryck,

I had something similar and I solved it by updating the default shader, SimpleEffect.fx. This file can be found in TorqueCore under Content > effects.

In the SimpleVS function there is a line:

output.texCoord = input.texCoord;

I changed this to:

// Where viewport_inv_width and _height are variables indicating
// the width and height of the display in pixels.

output.texCoord.x = input.texCoord.x + 0.5 / viewport_inv_width;
output.texCoord.y = input.texCoord.y + 0.5 / viewport_inv_height;

After this every is super crisp and sharp. I just got started learning about shaders so I'm a little...um...blurry...on the details but my present understand is that shaders work with a coordinate system based on the center of a pixel whereas we usually measure from the top left. Hence the 0.5 offset. I'm sure someone here can give a better explanation though.

#3 Yep, that's basically what it is. A more lengthy explanation can be found here: msdn.microsoft.com/en-us/library/bb219690(VS.85).aspx

#4 I changed that in the shader:

http://www.garagegames.com/community/forums/viewthread/77031

#5 Hi guys, thank you for the help of all, the changes posted here really solved the problem.