[Flightgear-devel] Issue list
Following a 'tradition', I'd like to remind of a few issues which I think should perhaps be sorted out before 3.0, partially have been discussed previously and involve me asking for some help on the C++ side. 1) rain layers still do not drift with the wind and will be eventually displaced from their cap clouds. I've discussed this previously with James who suggested that a generic way of spawning AI objects (which can get a velocity) from Nasal rather than the current way of spawning non-AI models from Nasal which can not drift would perhaps be a solution. I don't know what the status of this is. 2) runway and other lights do not appear in the effect framework, hence they get fogged inconsistently with what Atmospheric Light Scattering is doing. I think a cheap fix would be to fade them to transparent rather than to fog color, otherwise they'd need to appear in the effect framework and then I could write a consistent shader to treat them. I don't know what is preferable. The same issue persists with particles, although that isn't as severe in terms of showing realistic low visibility for IFR (it's a bit of a spoiler then the runway lights are always visible...). 3) the sun is currently pretty much always drawn, in particular also if it is below the horizon - which means that it shows inside the 'terrain' when the far away terrain is just painted onto the skydome. The sun also shows 'through' a cloud layer if the cloud layer is invisible because it is fogged. I think a property control whether the sun (moon) should be rendered would solve this. 4) exposing the moon phase somewhere as a property would be nice, then the moonlight night lighting could be made automatically - currently it's property controlled and one needs to edit the property by hand to see it 5) following a forum discussion about lightmaps for city and suburban terrain, my idea would be to use the urban effect for this (which has that functionality already) and run a version of the urban shader without the relief effect if random buildings are on. That appears to be working fine: http://www.flightgear.org/forums/viewtopic.php?f=47t=21059 FredB - is this a modification to the urban effect you can agree with? 6) there's still a 'crack' in the sky visible when the skydome shader is used. Based on the color of the crack which just shows the color of the default sunlight underneath (which the skydome shader can't possibly know), I believe this is really a fault line in the geometry and that it can't be fixed within the shader code. It'd be nice to be able to get rid of some of these eventually - please let me know if anyone is working on any of these and I can start picking up things from the other end. Cheers, * Thorsten -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60134071iu=/4140/ostg.clktrk ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Issue list
7) runway signs in ALS still rendered as terrain and have assigned texture of rocks/cliffs. 2013/10/13 Renk Thorsten thorsten.i.r...@jyu.fi Following a 'tradition', I'd like to remind of a few issues which I think should perhaps be sorted out before 3.0, partially have been discussed previously and involve me asking for some help on the C++ side. 1) rain layers still do not drift with the wind and will be eventually displaced from their cap clouds. I've discussed this previously with James who suggested that a generic way of spawning AI objects (which can get a velocity) from Nasal rather than the current way of spawning non-AI models from Nasal which can not drift would perhaps be a solution. I don't know what the status of this is. 2) runway and other lights do not appear in the effect framework, hence they get fogged inconsistently with what Atmospheric Light Scattering is doing. I think a cheap fix would be to fade them to transparent rather than to fog color, otherwise they'd need to appear in the effect framework and then I could write a consistent shader to treat them. I don't know what is preferable. The same issue persists with particles, although that isn't as severe in terms of showing realistic low visibility for IFR (it's a bit of a spoiler then the runway lights are always visible...). 3) the sun is currently pretty much always drawn, in particular also if it is below the horizon - which means that it shows inside the 'terrain' when the far away terrain is just painted onto the skydome. The sun also shows 'through' a cloud layer if the cloud layer is invisible because it is fogged. I think a property control whether the sun (moon) should be rendered would solve this. 4) exposing the moon phase somewhere as a property would be nice, then the moonlight night lighting could be made automatically - currently it's property controlled and one needs to edit the property by hand to see it 5) following a forum discussion about lightmaps for city and suburban terrain, my idea would be to use the urban effect for this (which has that functionality already) and run a version of the urban shader without the relief effect if random buildings are on. That appears to be working fine: http://www.flightgear.org/forums/viewtopic.php?f=47t=21059 FredB - is this a modification to the urban effect you can agree with? 6) there's still a 'crack' in the sky visible when the skydome shader is used. Based on the color of the crack which just shows the color of the default sunlight underneath (which the skydome shader can't possibly know), I believe this is really a fault line in the geometry and that it can't be fixed within the shader code. It'd be nice to be able to get rid of some of these eventually - please let me know if anyone is working on any of these and I can start picking up things from the other end. Cheers, * Thorsten -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60134071iu=/4140/ostg.clktrk ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60134071iu=/4140/ostg.clktrk___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Issue list
On 13 Oct 2013, at 12:02, Renk Thorsten thorsten.i.r...@jyu.fi wrote: 1) rain layers still do not drift with the wind and will be eventually displaced from their cap clouds. I've discussed this previously with James who suggested that a generic way of spawning AI objects (which can get a velocity) from Nasal rather than the current way of spawning non-AI models from Nasal which can not drift would perhaps be a solution. I don't know what the status of this is. I keep forgetting this one, but it would be a good improvement generally. Can you re-specify what you need in terms of API and I promise I'll look at it before 3.0? Kind regards, James -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60134071iu=/4140/ostg.clktrk___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
