Fix OpenGL ASTBlendPixel bailing too much without backgrounds (!902) · Merge requests · STJr / SRB2

Zwip-Zwap Zapony requested to merge Zwip-Zwap_Zapony/SRB2:opaque-translucent-opengl into master Apr 27, 2020

This fixes the bottoms of mountains in the title screen/GreenFlower Zone skybox being missing in OpenGL. Arid Canyon Zone fences still look fine.

This has not been extensively tested to see if OpenGL perfectly matches the software renderer on ALL related edge-cases (e.g. what happens when a "Translucent" patch with full alpha lies on top of another patch?), but it at least fixes problems with vanilla Sonic Robo Blast 2 assets.

|***Before (OpenGL)|After (OpenGL)**|Reference (Software)*| |::|::|::| ||||

The software renderer shouldn't be affected by this merge request. (The software renderer already handles these situations well.)

Edited Apr 27, 2020 by Zwip-Zwap Zapony

Fix OpenGL ASTBlendPixel bailing too much without backgrounds

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