Mip Map Generation

You can generate different MIP map level for the original image by selecting the image (Ruby.bmp in this example) on the project explorer and then click on the image51button on the Application Toolbar.

Note: Only one image can be selected for MIP map generation at one time.

A Generate MIP Maps window will appear.

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Select the desired Mip-Level for MIP map generation from the drop down list. This drop down list is generated based on the selected original image. Select the lowest mip-level you want to generate, then press the Generate button.

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When MIP map generation completes, image54 will appear in Image View toolbar. Click on the little triangle to expand the drop down list.

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You can select the view of each MIP level from the list.

For example, selecting the level 3 (72x53) will update the current image view as shown below

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Image View of Ruby BMP file at Mip Level 3

You can always re-generate MIP map for the same image by repeating the all the steps mentioned in this section.

Cube Maps

Cube Maps can be compressed with or without MIP Levels. Only a limited set of texture types (RGBA_8888 and RGBA_F16) are currently supported in DDS and KTX file formats. Compressing, Generating MIP Levels and Viewing Cube Maps uses the same process as image textures. Just place the file onto the Project Explorer and process them as required.

A new notation is used for the cube faces labeled as “Frames” for each cube face. For cube mapped files maximum frames is set to 6. Support for volumetric texture files is been reviewed and the frames limit will be expanded as needed.

When textures are added to the Project Explorer, the properties view will now display the type of texture as either a 2D or Cube Map, The Depth field is used for the frames size, the Depth field will also be used to indicate the z component of a 3D image (These notations may change in future revisions).

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View Image Difference

To view the difference between a processed image (Ruby_bmp_1) and original image (Ruby_bmp), right mouse button click on Ruby_bmp_1 and select View Image Diff from the context menu or select the View Image Diff Icon on the tool bar image69

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Mouse right mouse button click over Ruby_bmp_1 showing Context menu

You will now see a comparison of the original image with the compressed image

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Image Difference view

Note: The windows in this view are not movable.

Analyzing Compressed Images

After clicking View Image diff, you can run analysis on the images that show various statistics such as MSE, PSNR and Similarity Indices (SSIM) by selecting image72 on the top right corner of the image diff view.

When analysis process completed, the statistics result will be shown on the Property View

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