<div class="gmail_quote">2010/11/18 Brian Paul <<a href="mailto:brianp@vmware.com">brianp@vmware.com</a>> <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> <div class="im">On 11/18/2010 01:10 AM, Török Edwin wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> On Wed, 17 Nov 2010 15:23:47 -0700 Brian Paul<<a href="mailto:brian.e.paul@gmail.com" target="_blank">brian.e.paul@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> 2010/11/17 Török Edwin<<a href="mailto:edwintorok@gmail.com" target="_blank">edwintorok@gmail.com</a>>: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hi, Thought I'd do a Bugle trace to see if it logs any errors that could cause f.d.o bug #31667. I've seen just these two: glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA, 512, 128, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0x1af93cf0 - ^[NOTICE] <a href="http://showerror.gl" target="_blank">showerror.gl</a>: GL_INVALID_VALUE in glTexImage3D glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA, 512, 128, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0x1cd22480 ^[NOTICE] <a href="http://showerror.gl" target="_blank">showerror.gl</a>: GL_INVALID_VALUE in glTexImage3D Is 512x128 an invalid size for r600c/r600g? I tried using gldb-gui, but it crashes when trying to retrieve the states. Is it supposed to work with r600c or r600g? </blockquote> Run glxinfo -l and see what GL_MAX_3D_TEXTURE_SIZE says. </blockquote> Says 256. Is that a limitation of the hardware, the r600 driver, or mesa? </blockquote> </div> I don't know what the limit is on r600 off-hand, but 256 is the current maximum in Mesa. But we could easily bump it up to 512 if R600 or other hardware supports it. See MAX_3D_TEXTURE_LEVELS in src/mesa/main/config.h I've increased MAX_3D_TEXTURE_LEVELS every few years as PCs get more and more memory. Bear in mind that a 512x512x512xRGB texture would use 512MB of memory. Doubling the limit again would be 4GB. </blockquote></div> Hi Brian, This really should be raised to the same value as GL_MAX_TEXTURE_SIZE. How would you create a 8192x4x4 R8 texture then? The r600 hardware supports it and it takes very little memory. Even the old r300 can do e.g. 2048x4x4. Best regards, Marek