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3 Dimensional Chat / How should i create a painting tool?

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TGC_User
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Posted: 7th Aug 2018 16:11
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Here is an example picture:

In some games or map editors you can modify the terrain texture in realtime.
But does anyone know how i should do this in agk because i have no clue where to start.
Should i used memblocks and change each vertex normal map or something. Or directly change the texture?
Any help is very much appreciated!
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Resourceful
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Posted: 7th Aug 2018 23:38
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Hi

yes you would memblocks to do this

several people have posted code for the program Dark Basic Pro
it's some ware in the forum .. use search to find out that info

there should be some similarity's between DBP and AGK2

this is all the info I can give you as that ware my skill set is
at this point
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TGC_User
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Posted: 8th Aug 2018 18:44
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Thanks! i will check it out
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TGC_User
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Posted: 10th Aug 2018 17:39
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So should i create a new image using memblocks? Wouldn't that be inefficient if i have a 16K resolution texture for the terrain model?
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Posted: 11th Aug 2018 15:28
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From what I have seen
the image is loaded into memory
then changes are made in that

with what computer has today i would not think it would be a problem
most ground texturing is 2 images
for for the height and the other for giving the look of shapes on the ground for a more 3d look

so both need to have the changes dun to them

I hope this helps to give you a pointer
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Phaelax
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Posted: 23rd Aug 2018 22:14
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Might want to consider looking into shaders for the texturing blending. I don't know the extent of the control you have but may be worth looking into because it could be much faster.
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TGC_User
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Posted: 25th Aug 2018 18:21
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Thanks for the help the the agk commands says that the CreateImageFromMemblock command uses a lot of GPU bandwidth so it is not recommended that this command be called every frame on large images.(copied from here https://www.appgamekit.com/documentation/Reference/Memblock/CreateImageFromMemblock.htm).
I will look into shaders.
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Ortu
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Posted: 22nd Sep 2018 16:50
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Quote: "Wouldn't that be inefficient if i have a 16K resolution texture for the terrain model?
"


If you are using a 16k resolution image you should rethink your underlying approach.

Shaders are the way to go with atlas texture blending. Then for the painting, you only need to edit the blend map image which really never needs to be more than 2k max and doesn't need any of the detail of the actual textures
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