Homebrew GPU_DrawElements

[elhobbs]

I have been trying to use GPU_DrawElements similar to the usage in portal3ds. The difference is that I am trying to use GPU_TRIANGLES instead of GPU_UNKPRIM. The issue that I am experiencing is that only half of the triangles are rendering. I am using the most current ctrulib (from git) and devkitarm. Has anyone else run into this issue?

 

[neobrain]

Sounds like you've got your triangle order wrong. Try disabling backface culling.

 

[elhobbs]

Sounds like you've got your triangle order wrong. Try disabling backface culling.

Forgot to mention I already did that. If I offset the index buffer by 3 then it renders the alternate triangles.

 

[Jim_e]

Forgot to mention I already did that. If I offset the index buffer by 3 then it renders the alternate triangles.

That sounds like you setup the vertex attributes incorrectly, namely the number of attributes per vertex.

It would be helpful to see some code.

 

[elhobbs]

That sounds like you setup the vertex attributes incorrectly, namely the number of attributes per vertex.

It would be helpful to see some code.

I will post some code tonight when I get home from work.

 

[cebolleto]

GPU_DrawElements has only worked for me with GPU_UNKPRIM

 

[elhobbs]

GPU_DrawElements has only worked for me with GPU_UNKPRIM

That was it thanks. It had tried that before but I think it was while I had the build of ctrulib with the update that was reverted.