Commit Graph

10 Commits

Author SHA1 Message Date
Jonas Kulla 56226c40c6 Tilemap: Use vertex shader based autotile animation strategy
Previously, we would just stuff the entire tilemap vertex data
four times into the buffers, with only the autotile vertices
offset according to the animation frame. This meant we could
prepare the buffers once, and then just bind a different offset
for each animation frame without any shader changes, but it also
lead to a huge amount of data being duplicated (and blowing up
the buffer sizes).

The new method only requires one buffer, and instead animates by
recognizing vertices belonging to autotiles in a custom vertex
shader, which offsets them on the fly according to the animation
index.

With giant tilemaps, this method would turn out to be a little
less efficient, but considering the Tilemap is planned to be
rewritten to only hold the range of tiles visible on the screen
in its buffers, the on the fly offsetting will become neglient,
while at the same time the amount of data we have to send to the
GPU everytime the tilemap is updated is greatly reduced; so a
net win in the end.
2014-07-06 19:44:19 +02:00
Jonas Kulla f2d2a1886f Shader: Throw on compile/link error, and print info logs
Also let go of the startup debug prints when compiling.
The engine will now tell us properly which shader fails
at which part.
2013-12-30 01:38:47 +01:00
Jonas Kulla 0035c23641 Shader: Group all shaders in one collective struct
Makes sharedstate.{cpp|h} a lot easier to read, and
adding new shaders a one liner.
2013-12-11 05:22:13 +01:00
Jonas Kulla d8dab9c429 Start ifdef'ing out RGSS2 functionality 2013-10-02 22:40:09 +02:00
Jonas Kulla a54acce6b7 Implement Bitmap 'blur'
I was a bit confused at first because I thought Enterbrain
had actually implemented a full Gaussian blur, but nope,
just dumb averaging.
2013-10-01 18:12:52 +02:00
Jonas Kulla 9f26ff9fb0 Port over Bitmap 'radial_blur' from old SFML codebase
This implementation is also heaps better than the old
one as it doesn't use a (differently sized) aux texture,
meaning the Bitmap discards its old texture and aquires
one of same size, making reuse through the TexPool a
lot more likely. It also saves on the aux texture blits
and binding switches.

As the setup / resource acquisition far outweighs the
actual rendering cost, operation time is relatively
constant no matter how many divisions are used.
2013-10-01 12:03:20 +02:00
Jonas Kulla 7a6c05bba0 Implement animated flash tiles in Tilemap
Flash tiles start with an alpha of 60, which ramps up to 120
in 16 frames and 4 steps, then ramps down again over the same period.
2013-09-23 08:27:28 +02:00
Jonas Kulla 9e63fb6b64 Remove the remaining bits of deprecated GL usage
The drawing is now completely shader based, which makes away
with all usage of the depracted matrix stack. This also allows
us to do things like simple translations and texture coordinate
translation directly instead of doing everything indirectly
through matrices.

Fixed vertex attributes ('vertexPointer()' etc) are also
replaced with user defined attribute arrays.
2013-09-23 07:50:22 +02:00
Jonas Kulla b151a22f6e Rename 'Tex' to 'TEX' for consistency 2013-09-06 12:26:41 +02:00
Jonas Kulla ff25887f41 Initial commit 2013-09-01 16:27:21 +02:00