Hi!
I’m writing a script to render lightmaps to texture and I’m running into crashes. I did my best to put together a simple crashing scenario. I have a script that will render 10 lightmaps for a selected object and save them to exr files.
After the script is finished running a 3ds max error will pop up closing down the application. I have noticed that all maxscript code gets executed properly. So even when crashing all textures will be saved correctly and the last print will have executed. I have not been able to make the code stable. Even though some variations will not run into the crash I found that adding more unrelated functionality to working variations will lead to a crash.
I’m using 3ds Max 2017 and VRay Adv 3.40.02.
macroScript LightMapsTest
category:"MyLightmapper"
buttonText:"Light Maps Test"
toolTip:"Light Maps Test"
(
rollout LightMaps "LightMaps" width:512 height:216
(
button btn_bake_generate "Bake Lightmaps"
on btn_bake_generate pressed do
(
print "*************** GENERATING LIGHTMAPS ********************"
-- Check if the renderer is set to Vray
current_renderer = Renderers.current as string
found = findstring current_renderer "V_Ray_Adv"
if found == undefined then ( return undefined )
-- Set variables
obj = selection[1];
size = 16
output_dir = "C:/Renders/";
-- Check if the object selected is defined and if it is a a geometry
if obj == undefined then( return undefined )
found = false
for obj2 in geometry do ( found = (found or ( obj2 == obj )) )
if found == false then
(
print "Object sent to render is not a geometry"
return undefined
)
object_name = selection[1].name;
for i = 1 to 10 do
(
-- Create the bitmap in which the image will be saved
file = output_dir + object_name + i as string + ".exr"
deleteFile file
tempBitmap = bitmap size size filename:file
save tempBitmap
-- Define the bakemap
bakeMap = vraylightingmap();
bakeMap.enabled = true
bakeMap.filterOn = true
bakeMap.atmosphereOn = true
bakeMap.shadowOn = true
bakeMap.bitmap = tempBitmap
bakeMap.vrayVFB = false
bakeMap.color_mapping = false
bakeMap.multiplier = 1.0f
-- add the bakemap to the obj
obj.iNodeBakeProperties.removeAllBakeElements()
obj.INodeBakeProperties.addBakeElement bakeMap
obj.INodeBakeProperties.bakeEnabled = on
obj.INodeBakeProperties.flags = 1
obj.INodeBakeProperties.bakeChannel = 2
obj.INodeBakeProperties.nDilations = 1
-- render to texture
render rendertype:#bakeSelected vfb:off progressBar:true outputSize:[size,size] to:tempBitmap
-- set OpenEXR settings
fopenexr.SetCompression 0
fopenexr.setSaveScanline true
fopenexr.setLayerOutputType 0 0
fopenexr.setLayerOutputFormat 0 0
fopenexr.delAllAttributes
--Save the texture
save tempBitmap
close tempBitmap
)
print "********** END OF GENERATING LIGHTMAPS *****************"
)
)
createdialog LightMaps
)
crash_scene.zip (49.5 KB)