Displaying 2 results from an estimated 2 matches for "sr_invocation_id".
2015 May 26
2
Tessellation shaders get MEM_OUT_OF_BOUNDS errors / missing triangles
One additional observation that I just made is that on GK208, the blob
apparently doesn't use the result of S2R Rx, SR_INVOCATION_ID
wholesale in TCS. It either passes it through a I2I.S32.S32 Rx, |Rx|
(i.e. absolute value), or even more paradoxically, shl 2; shr 2; which
removes the top *2* bits, rather than just the top 1. However I see no
such behaviour on GF108.
I'm going to test out tomorrow whether this is the cause o...
2015 May 18
2
Tessellation shaders get MEM_OUT_OF_BOUNDS errors / missing triangles
Hello,
I've been debugging a few different tessellation shader issues with
nouveau, but let's start small. I see this issue on my GK208 with high
frequency, and I *think* I've seen it once or twice on my GF108, but
it's exceedingly rare, if it does happen. I don't have a GK10x to test
on, unfortunately, but I assume it'll have the same issue as the
GK208.
The issue is