Exposure levels - PNG vs EXR formats at 10x sun size
Posted: Wed Sep 16, 2026 3:01 pm
Hello, guys! 
VERY IMPORTANT for avoid any confusion due to weak precision of noises+colors of PNG image type:
-after completed rendering, should choose "EXR" image type with uncompressed, and with FP32 for insane color depth (this competes perfect true color at in the real life - much higher than 32-bit color depth) to save the rendered image;
- Free lastest "GIMP" - choose to click one of buttons before download and open any EXR file.
"Chess Procedural" scene
-- Rendered image at PT settings of OctaneRender on GeForce RTX 4090 GPU --:
-- Difference of exposure levels between PNG and EXR formats --:
---> Therefore, if you want to decrease exposure any image with any area of very high light intensity, EXR format is highly recommended.
----- Great tips and Excellent and Happy rendering!
-And-
Best regards, Ricardo Rodrigues! ------
VERY IMPORTANT for avoid any confusion due to weak precision of noises+colors of PNG image type:
-after completed rendering, should choose "EXR" image type with uncompressed, and with FP32 for insane color depth (this competes perfect true color at in the real life - much higher than 32-bit color depth) to save the rendered image;
- Free lastest "GIMP" - choose to click one of buttons before download and open any EXR file.
"Chess Procedural" scene
-- Rendered image at PT settings of OctaneRender on GeForce RTX 4090 GPU --:
-- Difference of exposure levels between PNG and EXR formats --:
---> Therefore, if you want to decrease exposure any image with any area of very high light intensity, EXR format is highly recommended.
----- Great tips and Excellent and Happy rendering!
-And-
Best regards, Ricardo Rodrigues!
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