Iris Shaders

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Uniforms start with dh does not match projection matrix in dh gbuffers

GeForceLegend opened this issue ยท 0 comments

commented

What happened?

Uniforms starts with dh (dhProjection, dhProjectionInverse) does not match the gl_ProjectionMatrix in dh gbuffer, when projection matrix is changing. It's mostly visible when using and stop using spyglass, and start or stop sprinting while flying. This image shows those uniforms in a frame capture.
Image

Looks like all depth factor of dh uniforms are 1 frame behind. Tho using dhProjection instead of gl_ProjectionMatrix in dh gbuffer can fix this, most developer will (and tons of developers still now) use gl_ProjectionMatrix in the first time, making them confused.

Screenshots

This is an example on old version of my project, which still uses gl_ProjectionMatrix but not dhProjection in dh gbuffers. When stop using spyglass, dh terrian sometimes become closer than expected, causing strange screen space shadow around the edge of normal terrain and DH terrain.

Image

Log output

Looks nothing useful in log.

Minecraft Version

Minecraft 1.21.1

Iris Version

iris-fabric-1.8.0+mc1.21.1.jar, DistantHorizons-2.2.1-a-1.21.1-neo-fabric.jar

Operating System

Windows10

What is your GPU?

NVIDIA GeForce RTX 4070

Additional context

No response