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Published on 2010-03-25T10:00:15Z
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I need a datastructure of the same size as the normal depth buffer and I need to be able to read from and write to it in a shader. Is this possible, and what does this datastructure look like?
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I need to debug a GLSL program but I don't know how to output intermediate result.
Is it possible to make some debug traces (like with printf) with GLSL ?
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Hi All,
I am trying to get update the eye position in my shader from my appliaction but I keep getting error 1281 when I attempt this. I have no problems after the initialization just when i subsequently try to update the values. Here is my code:
void GraphicsObject::SendShadersDDS(char vertFile…
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I am currently writing the positions of my geometry to the RGB channels of gl_FragColor and I would like to write 1.0 to the alpha channel if the fragment is part of geometry, and 0.0 if its empty.
Is there a simple way to tell if a fragment is geometry or not? Maybe through gl_FragCoord.z?
thanks
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I need a datastructure of the same size as the normal depth buffer and I need to be able to read from and write to it in a shader. Is this possible, and what does this datastructure look like?
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(note this question is closely related to this one however I didn't fully understand the accepted answer)
To support videocards in laptops I have to rewrite my GLSL 330 shaders to GLSL 130. I'm trying to do this but somehow I don't get vertex attributes to work properly.
My 330 shaders look like…
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'test2' =>
array
'name' => string 'ntuser.dat.LOG' (length=14)
'type' => string 'application/octet-stream' (length=24)
'tmp_name' => string 'D:\wamp\tmp\php224.tmp' (length=22)
'error' => int 0
'size' => int 0
The above should be depth of 2.
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I'm mapping a texture from my texture atlas to a square on a cube. For some reason, the t axis is inverted with 0 being at the top and 1 being at the bottom. Also, I have to specify the texture coordinates in clockwise order rather than counter-clockwise. I am using counter-clockwise windings. The…
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In this chapter, we’ll explore a model for a system that helps to manage a small conference, like a Code Camp. The model enables the application to provide an interesting service. Without the model, the application provides no value. We place great importance on creating a rich model with which our…
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In Haskell I can define following data type:
data Tree = Empty
| Leaf Int
| Node Tree Tree
and then write polymorphic function like this:
depth :: Tree -> Int
depth Empty = 0
depth (Leaf n) = 1
depth (Node l r) = 1 + max (depth l) (depth r)
In Java I can emulate algebraic data…
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I sometimes disable depth buffer writing via glDepthMask(GL_FALSE) during the alpha rendering of a frame. That works perfectly fine on some GPUs (like the Motorola Droid's PowerVR), but on the HTC EVO with the Adreno GPU for example, I end up with the frame buffer being complete garbage (I see traces…
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