Texturing Meshes at an Angle

[Davidobot]

Finally i found an solution to render trapezoid
Then in the fragment shader i divide s by p

Could you post a .love file to showcase this?

[MasterLee]

Press ↑,↑,→ to go to the actual experiment.
Next i will try to do the same with Quadrilateral but it will be hard math.

[Jasoco]

Finally i found an solution to render trapezoid
Bildschirmfoto von »2017-05-23 20-26-04«.png
i used following data: (x,y)(s,t,p)

Code: Select all

             ((-1,-1),(0,0,1)),
             ((-.1,+1),(0,1,.1)),
             ((+1,-1),(1,0,1)),
             ((+.1,+1),(.1,1,.1)),

Then in the fragment shader i divide s by p

The problem is it's still not perspective. Note that the squares at the "far" top end are still the same height as the ones at the "close" bottom end.

[MasterLee]

The problem is it's still not perspective. Note that the squares at the "far" top end are still the same height as the ones at the "close" bottom end.

I did the non perspective on purpose because it is more difficult and was the one i wanted.
Perspective quad would be easier.
That was not what i wanted:

Bildschirmfoto von »2017-05-26 12-52-03«.png (50.67 KiB) Viewed 6152 times

I wanted the following:

Bildschirmfoto von »2017-05-26 12-52-09«.png (51.56 KiB) Viewed 6152 times

Btw.: What about an if CGA Cards have 3D acceleration jam

[therektafire]

from the cpml github page

Clone the repository and require it, or if you prefer luarocks: $ luarocks install --server=http://luarocks.org/dev cpml. Add --tree=whatever for a local install.

How exactly does one require a git repo in a lua script -_- Do I require the /modules directory?

[Davidobot]

Perspective quad would be easier.
That was not what i wanted: <what Jasoco and I want>

Is it just me, or is something off about how it stretches things? Like the bottom is too stretched out. This is how it would look like in a proper perspective way (using pers.lua)

[MasterLee]

Is it just me, or is something off about how it stretches things? Like the bottom is too stretched out. This is how it would look like in a proper perspective way (using pers.lua)

It is just you:

You have 16:9 i have 4:3 screen aspect ratio.
Furthermore the upper part of your quad seems to have an depth of 9 while mine has an depth of 10. (Assumed that both start at depth 1)
That is why mine shows so stretched, it is simply not the same viewing angle and position.

Also you Texture has 19 rows where mine has only 16

[4aiman]

Sorry for necroposting, but is there a version that works on Android build of love2d?