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I added 0002642 to this issue as it relates to the particle system design. That said, I also did this to highlight the fact that the "SEED system" is basically like a large scale particle emitter and would benefit from the same things that a particle system would ( geometry instancing, transform feedback, etc). There is probably a decent amount of code duplication between SEED and the particle system and the render backend with the whole "ModelGenerator.cpp code in the Game section of the project. |
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Forum post: https://forums.thedarkmod.com/index.php?/topic/20656-particle-systems-refactoring-and-running-on-gpu/ |
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Well, the refactoring is finished. It started with preliminary commits 9008-9010, followed by main changes in 9011-9018. Now almost everything is moved to ParticleSystem.[h/cpp]. Note that ParticleSystem_[def/decl].h are considered to be parts of these files. These parts has some basic GLSL compatibility, making it possible to run this code on GPU (not sure if it is worth it though). The code in C-style, passing structs with raw around. All the functions are named idParticle_XxxYyyZzz and never access any global state: all inputs and outputs are explicitly marked. As the result of refactoring, the duplicate code is deduplicated =) Also, some parts of the computation are split into subparts for better resuse. Here are some notable changes: 1) Random seed for each particle is now computed by hash function of its index and other quantitites, instead of "stepping random" paradigm (see 0003161). 2) Randomizer for particle deform system is now computed from model name/surface index instead of its coordinates (see 0004132). 3) Bounding boxes are fixed (see 0005136). 4) Added check for image size mismatch. |
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Apparently, I broke animated particles in svn rev 9011 with a stupid typo. As a result, they all became triangular =) Fixed this problem in svn rev 9100. See also: https://forums.thedarkmod.com/index.php?/topic/20691-beta-testing-209/&do=findComment&comment=456080 |
- Anonymous
