Notes on fillrate and drawing large textures - Revision history

Unknown user at 18:33, 8 May 2020

2020-05-08T18:33:16Z

← Older revision		Revision as of 18:33, 8 May 2020
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	I mention this because although scaling the texture doesn't affect the memory bandwith, it does affect the rendering speed.		I mention this because although scaling the texture doesn't affect the memory bandwith, it does affect the rendering speed.
	There seems to be a direct relation between polygone size and rendering speed (read Tile-Accel. and Raster)		There seems to be a direct relation between polygone size and rendering speed (read Tile-Accel. and Raster)

			''In theory, this mean that drawing more smaller polygons is faster than drawing fewer larger polys, so using TRISTRIP can be quite useful here.''

	* '''TRANSLUCENT LIST''' : 5-600K pixel before dipping under 60fps.		* '''TRANSLUCENT LIST''' : 5-600K pixel before dipping under 60fps.

Unknown user at 13:41, 7 May 2020

2020-05-07T13:41:46Z

← Older revision		Revision as of 13:41, 7 May 2020
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	I'm using ARGB1555 .dtex files for my test.		I'm using ARGB1555 .dtex files for my test.
	At the moment of writing, all those textures are drawn in the TRANSLUCENT POLYGON LIST.		At the moment of writing, all those textures are drawn in the TRANSLUCENT POLYGON LIST.

	~~I'm having trouble using the PUNCH-THRU LIST on GLdc~~

	== Fillrate ==		== Fillrate ==
Line 13:		Line 11:

	I mention this because although scaling the texture doesn't affect the memory bandwith, it does affect the rendering speed.		I mention this because although scaling the texture doesn't affect the memory bandwith, it does affect the rendering speed.
			There seems to be a direct relation between polygone size and rendering speed (read Tile-Accel. and Raster)

			* '''TRANSLUCENT LIST''' : 5-600K pixel before dipping under 60fps.
			* '''PUNCHTHRU LIST''' : 2.2M pixel before dipping under 60fps.


	~~Right now, anytime the fille rate reach~~ +/- ~~550K, the framerate drops.~~		== More Reading ==
			[https://dcemulation.org/phpBB/viewtopic.php?f=29&t=104287&p=1053299&hilit=Tile+Accelerator#p1053235 Tile-Accelerator and Rasterisation]

Unknown user: Created page with "Those notes are from working on Reaperi Cycle and Summoning Signals, two projects that use primairly large textures for it's visual. Those projects are build using GLdc an..."

2020-05-07T12:32:55Z

Created page with "Those notes are from working on Reaperi Cycle and Summoning Signals, two projects that use primairly large textures for it's visual. Those projects are build using GLdc an..."

New page

Those notes are from working on Reaperi Cycle and Summoning Signals, two projects that use primairly large textures for it's visual.
Those projects are build using [[GLdc]] and a very light layer to interface with LUA.

== Textures ==
I'm using ARGB1555 .dtex files for my test.
At the moment of writing, all those textures are drawn in the TRANSLUCENT POLYGON LIST.

I'm having trouble using the PUNCH-THRU LIST on GLdc

== Fillrate ==
My calculation for fillrate is:
(texture.width * texture.scale) * (texture.height * texture.scale)

I mention this because although scaling the texture doesn't affect the memory bandwith, it does affect the rendering speed.

Right now, anytime the fille rate reach +/- 550K, the framerate drops.