Change Details

This completes support for tiled texture packing on the Blender / Cycles side of things. This depends on D14327. Most of these changes fall into one of three categories: - Updating image handling code to pack/unpack tiled and multi-view images[1] - Updating Cycles to handle tiled textures through BlenderImageLoader - Updating OSL to properly handle textures with multiple slots For OSL, I implemented a new SMV_TILED handle type and sampling strategy which is lifted directly from the already existing Cycles CPU implementation[2] Beyond the unit tests, a good way to test this is to use the "Monster - UDIM" demo from https://www.blender.org/download/demo-files/ Open the file, pack every texture, re-save the file elsewhere and then re-open that new file. Everything should work when rendering with Eevee and Cycles CPU / OSL / GPU. Additionally, try unpacking the files to re-save them locally. ---- [1] This fixes the unreported bug that multi-view images are not packable since 2.79. [2] The existing implementation can be found in the following 2 locations: https://developer.blender.org/diffusion/B/browse/master/intern/cycles/scene/shader_nodes.cpp$405 https://developer.blender.org/diffusion/B/browse/master/intern/cycles/kernel/svm/image.h$66

This completes support for tiled texture packing on the Blender / Cycles side of things. Most of these changes fall into one of three categories: - Updating image handling code to pack/unpack tiled and multi-view images[1] - Updating Cycles to handle tiled textures through BlenderImageLoader - Updating OSL to properly handle textures with multiple slots For OSL, the texture slot to tile mapping strategy is lifted directly from the already existing Cycles CPU implementation[2]. Beyond the unit tests, a good way to test this is to use the "Monster - UDIM" demo from https://www.blender.org/download/demo-files/ Open the file, pack every texture, re-save the file elsewhere and then re-open that new file. Everything should work when rendering with Eevee and Cycles CPU / OSL / GPU. Additionally, try unpacking the files to re-save them locally. ---- [1] This fixes the unreported bug that multi-view images are not packable since 2.79. [2] The existing implementation can be found in the following 2 locations: https://developer.blender.org/diffusion/B/browse/master/intern/cycles/scene/shader_nodes.cpp$405 https://developer.blender.org/diffusion/B/browse/master/intern/cycles/kernel/svm/image.h$66

This completes support for tiled texture packing on the Blender / Cycles side of things. This depends on D14327. Most of these changes fall into one of three categories: - Updating image handling code to pack/unpack tiled and multi-view images[1] - Updating Cycles to handle tiled textures through BlenderImageLoader - Updating OSL to properly handle textures with multiple slots For OSL, I implemented a new SMV_TILED handle type and sampling strategythe texture slot to tile mapping strategy is lifted directly from the already which is lifted directly from the already existing Cycles CPU implementation[2]. Beyond the unit tests, a good way to test this is to use the "Monster - UDIM" demo from https://www.blender.org/download/demo-files/ Open the file, pack every texture, re-save the file elsewhere and then re-open that new file. Everything should work when rendering with Eevee and Cycles CPU / OSL / GPU. Additionally, try unpacking the files to re-save them locally. ---- [1] This fixes the unreported bug that multi-view images are not packable since 2.79. [2] The existing implementation can be found in the following 2 locations: https://developer.blender.org/diffusion/B/browse/master/intern/cycles/scene/shader_nodes.cpp$405 https://developer.blender.org/diffusion/B/browse/master/intern/cycles/kernel/svm/image.h$66