Slope Scale / Depth Bias

[panhaowen]

Will BGFX support features like depth bias ?
Such as :
OGL:glPolygonOffset
D3D: D3DRS_SLOPESCALEDEPTHBIAS D3DRS_DEPTHBIAS

[bkaradzic]

Where you going to use it?

[panhaowen]

Sorry, I haven’t had time to see your reply recently.
I am planning this way:
In order to solve the problem of coplanar space triangle drawing, I intend to provide two levels of abstraction. One is to use the default depth in the engine to decrement in the order of drawing, and the other is manually specified by the user.

[maxattack]

Tagging in -- D3DRS_SLOPESCALEDEPTHBIAS/glPolygonOffset is useful for fine-tuning shadow-mapping acne without putting magic-numbers in shaders.

[bkaradzic]

See:

https://web.archive.org/web/20160602232409/http://www.dissidentlogic.com/old/images/NormalOffsetShadows/GDC_Poster_NormalOffset.png