Re: [GEM-dev] motion blur

i made more test. the depth buffer is empty, but not with the correct value. the problem comes from GEMglClearDepth

this code :

///////////////////////////////////////////////////////// // Render // void GEMglClearDepth :: render(GemState *state) { glClearDepth (10); // <- fix for test only post("depth : %d", depth); // <- ...

}

gives : depth : 1073741824 in the log and the patch is working.

look like there is a problem with (GLclampd) casting.

cyrille

chris clepper a écrit :

Yes, that mask is only for the depth buffer. The mask for color and depth would be 256 + 16384.

On 8/21/06, *cyrille henry* < cyrille.henry@la-kitchen.fr mailto:cyrille.henry@la-kitchen.fr> wrote:

I add the line :

        post("mask %d, depth %d, current %d, color %d", mask,
GL_DEPTH_BUFFER_BIT, GL_CURRENT_BIT, GL_COLOR_BUFFER_BIT);


and it gives me :
mask 256, depth 256, current 1, color 16384

looks OK.
???

cyrille

chris clepper a écrit :
 > On 8/21/06, *cyrille henry* < cyrille.henry@la-kitchen.fr
<mailto:cyrille.henry@la-kitchen.fr>
 > <mailto:cyrille.henry@la-kitchen.fr
<mailto:cyrille.henry@la-kitchen.fr>>> wrote:
 >
 >     well, if you see something, then it "work better"
 >     i think we have the same problem.
 >
 >     so, i think the gemglcleardeph and gemglclear does not only
clear depth
 >     buffer, but also the color buffer.
 >     but i don't really see why, and how to solve this.
 >
 >
 > It works on both Nvidia and ATI on OSX, but not ATI on Windows.  The
 > code only clears the depth buffer, so I can't see what would
trigger the
 > clearing of any other buffers.  Maybe the GLdefine constants are
wrong
 > or there is an OR being done?  Try printing out GL_DEPTH_BUFFER_BIT,
 > GL_CURRENT_BIT and GL_COLOR_BUFFER_BIT to the console.
 >
 > cgc
 >
 >
 >
 >
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