bandini Posted February 23, 2015 Share Posted February 23, 2015 Silly question, but what is the difference between the heat field and temperature field? Temperature is measuring and tracking the temperature of the sim, feeding into buoyancy, but what is heat measuring and doing? Is heat dependent on fuel, or can a heat field exist without a fuel field? Quote Link to comment Share on other sites More sharing options...
mawi Posted February 23, 2015 Share Posted February 23, 2015 Silly question, but what is the difference between the heat field and temperature field? Temperature is measuring and tracking the temperature of the sim, feeding into buoyancy, but what is heat measuring and doing? Is heat dependent on fuel, or can a heat field exist without a fuel field? Heat is a product of the burn field. Burn is generated each frame with something like. if temperature > ignition temp burn = fuel * burnrate Heat is then created with max(burn,heat) and advected. In other words, heat is created at places with fuel and high temperature. Temperature may exist anywere. 4 Quote Link to comment Share on other sites More sharing options...
bandini Posted February 23, 2015 Author Share Posted February 23, 2015 Thanks, Martin! Quote Link to comment Share on other sites More sharing options...
ciliath Posted February 23, 2015 Share Posted February 23, 2015 ooouh, that's good to know Quote Link to comment Share on other sites More sharing options...
Annon Posted February 24, 2015 Share Posted February 24, 2015 It's also easy to think about it as heat is fire and temperature is just the temperature of the voxels in the sim... So usually you'll use heat as "where fire is" and you'll colour temperature by a ramp that is masked by heat to get your final fire output. But that's more on the rendering side. 2 Quote Link to comment Share on other sites More sharing options...
rayman Posted February 24, 2015 Share Posted February 24, 2015 There is a great video from Peter Quint explaining how pyro fields works: https://vimeo.com/44619541 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.