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Keet
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Re: analysis of various rendering modes. Replay.

I don't know how the real sculpture is supposed to look but I don't think any of these are perfect.
Especially the third one, that seems to look good on a first glance but the shadow is a mirror. That looks really weird, glass on the bottom box?
The second rendering looks to be the best if the color and grain truly represents the real object.

Did you use a glass shell around the sculpture? It's easy to create such a shell: Resize the sculpture with "Keep proportions" like you did with the glass shell for the ball. Export the resized sculpture. Edit the obj file and replace the first g line with "g glass" and the "usemtl" line below that with "usemtl Glass". Remove all other g and usemtl lines if there are any. Delete the mtl file. Copy the mtl file of your glass ball and rename it with the same name as the obj file. Make sure the "newmtl" line says "newmtl Glass". Import your glass sculpture.
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[Aug 21, 2025, 7:33:23 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
GaudiGalopin3324
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Re: analysis of various rendering modes. Replay.

Yes. I made such a glass shell for a sculpture. It is impossible to create a correct 2 mm thick shell correctly on complex shapes. You can only make a slightly proportionally enlarged model and move it relative to the inner shape. The real shell is probably made in a different way in other programs, but not in SH3D. But you can carefully achieve a layer of glass on the areas visible in the frame (this layer will always be of different thickness, it does not matter for the effect of reflections, the main thing is that this layer should be as minimal as possible). It is impossible to make such glass in an even layer on all sides of the sculpture, only approximately in the visible area from the viewer's side.
[Aug 21, 2025, 7:50:28 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
GaudiGalopin3324
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Re: analysis of various rendering modes. Replay.

To simulate metal, it is better to use the texture of this metal in high resolution. If you try to match the color, you will get a sad plasticine smeared with fat. Just like in the second picture. Okay, not plasticine. Milk chocolate, but not bronze.





the rendering time is exactly the same for color and texture, interestingly.
[Aug 21, 2025, 12:00:34 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
captaincook
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tongue Re: analysis of various rendering modes. Replay.

Bonjour GaudiGalopin.
J'ai fait aussi des essais de brillance et j'ai été un peu surpris.
A partir de deux images similaires ayant la même texture et le même degré de brillance, la première utilise le "ShininessShader glossy" et le résultat est complètement mat.



La seconde utilise le "ShininessShader silk" mais tous les autres paramètres sont identiques et là le résultat est tel que je le souhaitais.



Et en plus, ce deuxième choix m'a quelque peu rajeuni. laughing laughing laughing
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[Edit 1 times, last edit by captaincook at Aug 21, 2025, 3:34:55 PM]
[Aug 21, 2025, 2:57:43 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
hansmex
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Re: analysis of various rendering modes. Replay.

What did Descartes (Dikart) do to deserve such a statue?
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[Aug 21, 2025, 3:23:13 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
GaudiGalopin3324
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Re: analysis of various rendering modes. Replay.

I have no idea. It's some kind of sculpture and wall panel manufacturer. Their only benefit to society is probably that they have made a 3D model of their product, which is very well executed. biggrin
[Aug 21, 2025, 8:32:43 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
GaudiGalopin3324
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Re: analysis of various rendering modes. Replay.

oui, le deuxième capitaine semble beaucoup plus optimiste))) les modes ne sont pas si importants)) biggrin biggrin biggrin
[Aug 21, 2025, 8:36:38 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
captaincook
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Re: analysis of various rendering modes. Replay.

Re bonjour GaudiGalopin.
Ayant été surpris par les résultats différents de mon message précédent des rendus obtenus avec les réglage Glossy et Silk (Mat avec Glossy et brillant avec Silk), j'ai fait d'autres essais à partir de mes images de meubles de cuisine où vous m'aviez bien aidé pour obtenir ce que je souhaitais.

Dans les 2 premières images, les meubles sont de couleur blanche brillante (pas de texture) et la seule différence est le choix du paramêtre de ShininessShader.





Là, c'est le choix de Glossy qui est le bon et non celui de Silk.

Sur les 2 dernières images, la différence est que les meubles sont de texture blanche brillante (pas de couleur).





Le rendu Glossy est un peu moins prononcé que celui fait à partir de meubles de couleur blanche mais celui fait avec Silk est toujours aussi mat que le précédent.

Donc je ne comprends pas que ce soit l'inverse avec le rendu des images de sculptures précédentes concernant le choix de Glossy (résultat mat) ou de Silk (résultat brillant).

Mais il est évident qu'il faut faire autant d'essais que nécessaires pour trouver le bon choix.

Merci encore.
[Aug 23, 2025, 12:23:29 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
GaudiGalopin3324
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Re: analysis of various rendering modes. Replay.

bonjour captaincook. Je pense que le plus grand effet du mode Pathtracing sera dans les intérieurs très colorés. Dans un intérieur blanc avec des objets blancs, il n'est pas intéressant et il n'a aucun avantage. Et pourtant, il est bon pour les grandes pièces, dans les petites surfaces, il n'est pas perceptible. j'ai également remarqué que l'effet en mode Pathtracing (Glossy et Silk) n'est clairement visible que dans les zones faiblement éclairées et dans les zones d'ombre. Il n'y a pas de réflexions et de réflexes distincts sur les surfaces éclairées.




[Aug 24, 2025, 10:07:49 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
GaudiGalopin3324
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Re: analysis of various rendering modes. Replay.

Silk---->Glossy biggrin
[Aug 25, 2025, 7:27:02 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
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