I felt like I had to make this xD If you have Photoshop, please skip Step 1 and Step 2, I have both, but I use GIMP b/c it is easy to use. Also, you cannot have GIMP w/o having GTK, and don't worry, they barely take up any space put together. Also, for Step 4, you must sign up on the website to get full-size renders, also if you don't sign up, it will have a gross black background, and for best quality, and should have no background at all.
Step 1. Download GIMP
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Step 2. Download GTK
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Step 3. Open GIMP or Photoshop
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Step 4. Go to PlanetRenders and get the object/person that is going to be in your spray.
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Step 5. Once GIMP or PS is open, click File --> New, then make it 256 by 256 px.
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Step 6. Mess around with it for a while, then it should look something like this.
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Step 7. Save it as a .PNG
(GIMP ONLY: Make sure you click on Merge All Visible layers after you save it, a box should come up asking you for MAVL or Flatten Image.)
Step 8. Download
VTFEdit.
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Step 9. Launch VTFEdit
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Step 10. Upload your spray, then save it as a VTF.
NOTE: Save it in C:\Program Files\Steam\steamapps\YourUsername\team fortress 2\tf\materials\VGUI\logos
Step 11. Launch Team Fortress 2. Then go to Options --> Multiplayer --> Import Spray. Then Find Your Spray, and Open It.
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Step 12. Enter a server, go up to a wall, and hit "T"!
Final Result:
FAQ:
Q: Where did you get those blood patterns?
A: Search "GIMP Brushes" at www.deviantart.com Once you find one you like, download it, and save it to the GIMP/brushes folder.
Q: Where do you get fonts?
A: Just search up fonts on google, once you find one you like, save it in your WINDOWS/font folder.
Q: What is a render?
A: Simply a picture of one thing, that has a transparent background.
Q: Why does your spray look kind of bad?
A: 'Cause it was just for a tutorial, and I didn't feel the need to make it look fancy.
If you have any other questions, please PM me, or add strongbad36x on steam.