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RenderCore_Minimal: use glSubTexImage2d over glTexImage2d #24

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merged 1 commit into from May 26, 2022
Merged

RenderCore_Minimal: use glSubTexImage2d over glTexImage2d #24

merged 1 commit into from May 26, 2022

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HugoPeters1024
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This prevents a new allocation of texture memory and as a result is likely faster.

Extra info:
https://www.khronos.org/opengl/wiki/Common_Mistakes#Updating_a_texture

glTexImage2D creates the storage for the texture, defining the size/format and removing all previous pixel data. glTexSubImage2D only modifies pixel data within the texture. It can be used to update all the texels, or simply a portion of them.

@jbikker jbikker merged commit 547c9cd into jbikker:master May 26, 2022
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@HugoPeters1024 @jbikker