WebGLBackend: Bring back 3D functionality for copyTextureToTexture #30584
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zonkypop
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| @@ -699,68 +699,90 @@ class WebGLTextureUtils { | |||
| * @param {Texture} dstTexture - The destination texture. | |||
| * @param {?Vector4} [srcRegion=null] - The region of the source texture to copy. | |||
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Do you mind fixing the parameter type of srcRegion?
| */ | ||
| copyTextureToTexture( srcTexture, dstTexture, srcRegion = null, dstPosition = null, level = 0 ) { | ||
| copyTextureToTexture( srcTexture, dstTexture, srcRegion = null, dstPosition = null, srcLevel = 0, dstLevel = 0 ) { |
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Do you mind updating all copyTextureToTexture() signatures in WebGPURenderer? For that, you have to update Renderer.copyTextureToTexture(), Backend.copyTextureToTexture() (the interface definition) and both backends.
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Cool I've updated the signatures too, hopefully it's looking alright
zonkypop
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src/renderers/common/Renderer.js
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| */ | ||
| copyTextureToTexture( srcTexture, dstTexture, srcRegion = null, dstPosition = null, level = 0 ) { | ||
| copyTextureToTexture( srcTexture, dstTexture, srcRegion = null, dstPosition = null, level = 0, dstLevel = 0 ) { |
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Can you please rename level to srcLevel?
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Fixed, I've set dstLevel = null which is the same as the original WebGLRenderer as well.
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| // gather the necessary dimensions to copy | ||
| let width, height, depth, minX, minY, minZ; | ||
| let dstX, dstY, dstZ; | ||
| const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[ dstLevel ] : srcTexture.image; |
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This bit isn't correct. The default value of dstLevel must be 0 otherwise you end up with srcTexture.mipmaps[ null ].
Please change the default value of dstLevel to 0 in all signatures as well in #30618.
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Regarding your comment in #30584 (comment): The signature in WebGLRenderer can't be used as a template since the value is null for backwards compatibility reason, AFAICS. Besides, it is set to 0 in the first if statement.
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Ah yes that makes sense, I have updated them to use dstLevel = 0 by default now.
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Fix interface method, see #30584.
Issue
#30619
Description
In the WebGLBackend, copyTextureToTexture has only implemented copying for 2D textures.
This PR uses parts of the code from the original GL renderer to add functionality for copying between 2D and 3D textures in new WebGL fallback renderer.