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dmiannay

converting files to BMP then dxt1

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Guest JamesJ

In a previous thread it was suggested converting texture files to this format would improve autogen performance I downloaded the DDS converter 2 and converted the files {DEMO 2} to BMP but am unable to convert them back..I get an error message for every file saying "cannot load" also when I click on a bmp file to view it I get the Windows picture and fax viewer with a message "drawing failed" Are these related and what am I missing? When I try to fly the demo using autogen the trees etc are surrounded by a black background any help would be appreciated..JamesJ

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Guest JamesJ

I am unable to convert them back to dxt1. they remain as BMP files no matter what..JamesJ

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As others have said use the DirectX SDK to convert them to DXT1,its much easier, another thread here describes very well how to do it, you will get nothing but problems using DDS 2 converting them to BMP`S, textures upside down and stuff like that.

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Very odd. I ran texconvert.exe (DirectX SDK) and converted all the files to DXT1 but all the file sizes remain the same and the texture sizes (e.g. 1024 x 1024) are all the same as well. What does changing the file type from DXT3/DXT5 to DXT1 do to help performance?DougDell XPS Gen3 (3.6GHz/800FSB) | 2GB DDR SDRAM | 74GB SATA, 10k RPM (C: ) | 120GB SATA (D: ) | 512MB ATI Radeon X1900XTX (Catalyst 6.8) | Audigy 2 ZS Sound | MS Force Feedback 2 | WindowsXP Pro (SP2) | DirectX 9.0c



Doug Miannay

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DXT3/5 required 8 bits / pixel and DXT1 requires 4 bits / pixel (actually, a 4x4 grid of pixels is encoded into 64 bits of alpha and 64 bits of color in DXT3/5, or just 64 bits of color in DXT1 (with the optional capability to also encode an apha bit within the 64 bit color data)). So a 1024 texture will be 4096x4096 for DXT1, plus the file space for the mipmaps.scott s..

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Thanks for the info, Scott. There's much I have to learn before I can start understanding all this! DougDell XPS Gen3 (3.6GHz/800FSB) | 2GB DDR SDRAM | 74GB SATA, 10k RPM (C: ) | 120GB SATA (D: ) | 512MB ATI Radeon X1900XTX (Catalyst 6.8) | Audigy 2 ZS Sound | MS Force Feedback 2 | WindowsXP Pro (SP2) | DirectX 9.0c



Doug Miannay

M1mhPJG.png 1BV5Kt7.jpg

PC Specs: i7-8700K (OC 5.0GHz - HT Off) | ASUS Maximus X Hero Z370 | Corsair Hydro H150i Pro Cooler | ASUS STRIX-RTX2080TI-11G | 32GB G.Skill DDR4 TridentZ RGB 4000Hz  | Samsung 960 Pro 512GB M.2 (OS/Apps) | Samsung 960 Pro 1TB M.2 (Sim/Games) | Corsair H1000i PSU | Fractal Design Define R6 Blackout Case | Win10 Pro x64

Addons: Many Orbx Products | Many FSD/FB/FT/PacS/LatinV/Aerosoft Airports | ASP4/ASCA | UTL at 35% | ChasePlane | PMDG/FSL/A2A Aircraft

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Where can I get the DirectX SDK from?Thanks a lot,


Howard

Jetline Systems: Intel 8th Gen Core i7 8700K (4.8GHz Overclock); GTX 1080 Ti; LG Curved UltraWide 3440x1440 Monitor

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