Richard Antalik
e1665c3d31
This patch changes behavior of strip transform and crop feature. Purpose of this change is to allow display arbitrary portion of input image, simplify user interface and workflow. Offset and Crop values in old files are converted in versioning. Offset animation is also converted. Crop animation and animation of crop or offset enable properties is not taken into account Changes in behavior and interface: - If image is added to timeline it is scaled to fit inside preview area while maintaining aspect ratio. Image is centered. This is considered as a baseline for further transformation. - Scale and rotation was added, so it is possible to transform image at it's original resolution. - Crop will not affect image transformation (does not move image). - Values of Crop and Transform Position are in pixels, these values are corrected if preview is fraction of project resolution. - Transform and Mirror panel has been removed and new Transform panel and Crop panel is moved to Adjust panel. Mirror is now part of new Transform panel. Technical changes: - Preprocessing stage must work on duplicated image, because original is cached. Previously Crop and Offset could run at once and required only one duplication of image. This is not the case with new algorithms, so duplication on demand is implemented. Transformation can read original image and will output new image that is safe to modify. It should be possible to add crop step to transform algorithm, so that Crop won't require previous duplication though. - Use Crop and Use Translation checkboxes were removed. Individual values are compared to default values to check if image needs to be processed. In case of transform this will be done also if resolution of source. Reviewed By: sergey Differential Revision: https://developer.blender.org/D8393
The following 4 steps to adding a new image format to blender, its probably easiest to look at the png code for a clean clear example, animation formats are a bit more complicated but very similar: Step 1: create a new file named after the format for example lets say we were creating an openexr read/writer use openexr.c It should contain functions to match the following prototypes: struct ImBuf *imb_loadopenexr(unsigned char *mem,int size,int flags); /* Use one of the following depending on what's easier for your file format */ short imb_saveopenexr(struct ImBuf *ibuf, FILE myfile, int flags); short imb_saveopenexr(struct ImBuf *ibuf, char *myfile, int flags); /* Used to test if its the correct format int IMB_is_openexr(void *buf); Step 2: Add your hooks to read and write the image format these go in writeimage.c and readimage.c just look at how the others are done Step 3: Add in IS_openexr to blender/source/blender/imbuf/IMB_imbuf_types.h Add in R_openexr to source/blender/makesdna/DNA_scene_types.h Step 4: Add your hooks to the gui. source/blender/src/buttons_scene.c source/blender/src/toets.c source/blender/src/writeimage.c Step 5: edit the following files: blender/source/blender/imbuf/intern/util.c blender/source/blender/src/filesel.c blender/source/blender/src/screendump.c and add your extension so that your format gets recognized in the thumbnails. Step 6: Alter the build process: For cmake you need to edit blender/source/blender/imbuf/CMakeLists.txt and add in your additional files to source_files. If you have any external library info you will also need to add that to the various build processes. Step 7: Its also good to add your image format to: makepicstring in blender/source/blender/blenkernel/intern/image.c