cb3d
07-20-02, 12:12 AM
Greetings,
I will try to keep this as short as possible.
I have owned Zbrush since it first hit the scene, but have only started working with it in the last few months. I come from more of a 3D Studio Max world, and frankly, I found Zbrush alien and difficult to use......until now. I have seen the amazing work many of you have done, and so this week I finally dug into the tutorials and zscripts to see what this program can do. Needless to say, my first impression has taken a 180. I now see the incredible value of this tool.
So to give back to all of you who have been so kind to post your tips and techniques (which has flattened my learning curve substantially), I thought you might enjoy this rather novel use for Zbrush - creating true stereoscopic images from your Zbrush renderings. So whip out your 3D glasses, enjoy the image(s), and here is the process:
True 3D images in Zbrush and Photoshop.
1. Render your Zbrush canvas at whatever settings you prefer (best, shadows on etc.).
2. Select the “MRGBZGrabber” tool.
3. In the modifier rollout of the tool, leave “Shaded RGB” on , but turn “Auto Crop” off.
4. Select the entire canvas with the tool. The depth information of the canvas will automatically be saved in the Alpha palette, and the color rendered image will be saved in the Texture palette.
5. In the Alpha palette, export the alpha (or depth information) as a .psd. Zbrush is will auto name it, or you call it whatever you like. For this example, we will call it scene_depth.psd
6. In the Texture palette, export the texture as a .psd (your color image). We will call it scene_color.psd
Now that you have the color rendering and the depth information as separate files, you are ready to open Photoshop and go to work:
7. Open scene_depth.psd in Photoshop.
8. Click on Image/Mode and convert it from Multichannel to Grayscale.
9. Click on Image/Mode again and convert it to RGB.
10. Open the Layers palette and create a new transparent layer.
11. Fill the new layer with 50% gray.
12. With the gray layer still selected, click on the blending mode rollout (just under the word “Layers” in the Layers palette) and change it from “normal” to “screen”.
13. Your image should now appear gray with brighter gray areas.
14. Save the file (Photoshop will warn you that you are saving over a file that already exists, and that is fine).
15. Open scene_color.psd in Photoshop, and choose Filters/Distort/Displace. Set Vertical scale percentage to 0, and set Horizontal scale percentage to 15. Make sure that “Stretch to Fit” and “Repeat Edge Pixels” are checked. Click apply, and you will be prompted to select a .psd file to use in the displace operation. Choose your scene_depth.psd. Immediately, you should notice a slight shift occur in the image. Save this as scene_right.psd (this will be the right view in your stereo pair). Close the file.
16. Again open scene_color.psd in Photoshop, and choose Filters/Distort/Displace. Set Vertical scale percentage to 0, and this time, set Horizontal scale percentage to -15. Again, make sure that “Stretch to Fit” and “Repeat Edge Pixels” are checked. Click apply, and you will be prompted to select a .psd file to use in the displace operation. Choose your scene_depth.psd again. And again, you should notice a slight shift occur in the image. Save this as scene_left.psd (this will be the left view in your stereo pair).
17. With this file still open, Select it all (Ctrl A on Windows), and copy it to your clipboard (Ctrl C). Now close the file.
18. Open scene_right.psd.
19. Click on Image/Mode and convert it to grayscale.
20. Click on Image/Mode again, and convert it back to RGB.
21. Open the Channels palette.
22. Select the red channel only and paste (Cntrl V)
23. Reselect the RGB channel.
24. Put on your 3D glasses (red lens over left eye), and enjoy seeing your Zbrush scene in true 3D depth.
25. “Save as” the image in whatever format you prefer (.psd, ,bmp., .jpg etc.).
http://www2.zbrushcentral.com/zbc_uploads/user_image-1027148957kgb.jpg http://www2.zbrushcentral.com/zbc_uploads/user_image-1027149030mmt.jpg
I will try to keep this as short as possible.
I have owned Zbrush since it first hit the scene, but have only started working with it in the last few months. I come from more of a 3D Studio Max world, and frankly, I found Zbrush alien and difficult to use......until now. I have seen the amazing work many of you have done, and so this week I finally dug into the tutorials and zscripts to see what this program can do. Needless to say, my first impression has taken a 180. I now see the incredible value of this tool.
So to give back to all of you who have been so kind to post your tips and techniques (which has flattened my learning curve substantially), I thought you might enjoy this rather novel use for Zbrush - creating true stereoscopic images from your Zbrush renderings. So whip out your 3D glasses, enjoy the image(s), and here is the process:
True 3D images in Zbrush and Photoshop.
1. Render your Zbrush canvas at whatever settings you prefer (best, shadows on etc.).
2. Select the “MRGBZGrabber” tool.
3. In the modifier rollout of the tool, leave “Shaded RGB” on , but turn “Auto Crop” off.
4. Select the entire canvas with the tool. The depth information of the canvas will automatically be saved in the Alpha palette, and the color rendered image will be saved in the Texture palette.
5. In the Alpha palette, export the alpha (or depth information) as a .psd. Zbrush is will auto name it, or you call it whatever you like. For this example, we will call it scene_depth.psd
6. In the Texture palette, export the texture as a .psd (your color image). We will call it scene_color.psd
Now that you have the color rendering and the depth information as separate files, you are ready to open Photoshop and go to work:
7. Open scene_depth.psd in Photoshop.
8. Click on Image/Mode and convert it from Multichannel to Grayscale.
9. Click on Image/Mode again and convert it to RGB.
10. Open the Layers palette and create a new transparent layer.
11. Fill the new layer with 50% gray.
12. With the gray layer still selected, click on the blending mode rollout (just under the word “Layers” in the Layers palette) and change it from “normal” to “screen”.
13. Your image should now appear gray with brighter gray areas.
14. Save the file (Photoshop will warn you that you are saving over a file that already exists, and that is fine).
15. Open scene_color.psd in Photoshop, and choose Filters/Distort/Displace. Set Vertical scale percentage to 0, and set Horizontal scale percentage to 15. Make sure that “Stretch to Fit” and “Repeat Edge Pixels” are checked. Click apply, and you will be prompted to select a .psd file to use in the displace operation. Choose your scene_depth.psd. Immediately, you should notice a slight shift occur in the image. Save this as scene_right.psd (this will be the right view in your stereo pair). Close the file.
16. Again open scene_color.psd in Photoshop, and choose Filters/Distort/Displace. Set Vertical scale percentage to 0, and this time, set Horizontal scale percentage to -15. Again, make sure that “Stretch to Fit” and “Repeat Edge Pixels” are checked. Click apply, and you will be prompted to select a .psd file to use in the displace operation. Choose your scene_depth.psd again. And again, you should notice a slight shift occur in the image. Save this as scene_left.psd (this will be the left view in your stereo pair).
17. With this file still open, Select it all (Ctrl A on Windows), and copy it to your clipboard (Ctrl C). Now close the file.
18. Open scene_right.psd.
19. Click on Image/Mode and convert it to grayscale.
20. Click on Image/Mode again, and convert it back to RGB.
21. Open the Channels palette.
22. Select the red channel only and paste (Cntrl V)
23. Reselect the RGB channel.
24. Put on your 3D glasses (red lens over left eye), and enjoy seeing your Zbrush scene in true 3D depth.
25. “Save as” the image in whatever format you prefer (.psd, ,bmp., .jpg etc.).
http://www2.zbrushcentral.com/zbc_uploads/user_image-1027148957kgb.jpg http://www2.zbrushcentral.com/zbc_uploads/user_image-1027149030mmt.jpg