Is there a way to modify the texture image data, such as changing the .jpg header text, when loading the .jpg texture in three.js?
I am curious if the texture data is accessible somewhere within the code, possibly as a string. How could I go about this?
Utilize the power of 2D <canvas> as a texture source, allowing you to manipulate image data using the HTML5 canvas API before sending it to the GPU as texture data.
Check out examples here (especially for resizing large JPEGs)
Simply create a canvas element
https://github.com/miohtama/Krusovice/blob/master/src/showobjects/framedimage.js#L134
Use drawImage() to transfer the original texture data onto it
https://github.com/miohtama/Krusovice/blob/master/src/showobjects/framedimage.js#L165
Then simply treat it as a texture source similar to an <img> element
https://github.com/miohtama/Krusovice/blob/master/src/renderers/three.js#L396
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