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Using Cameras

marcelle19marcelle19 Posts: 174
in Daz Studio Discussion

Hello again. You have all been so helpful in the past, I am hoping you can help me here too.

I can't seem to consistently use cameras. Whether or not I use a preset or add a new camera doesn't seem to matter. One time it will work; the next time, with the same settings, it won't work. Whether I add elements to the scene or not doesn't seem to matter either; one time everything is fine and the scene renders; the next time the scene will not show up on the camera so will not render.

I have read some of the User Guide on Cameras, and am re-reading it.

I am hoping some of you more experienced users can give me some helpful hints/advice about what I am doing wrong.

Thanks again in advance. - Bill

Comments

  • GordigGordig Posts: 10,169

    Can you be more specific about how it "doesn't work"? Are you selecting the camera in the viewport drop-down before rendering?

  • marcelle19marcelle19 Posts: 174

    Gordig said:

    Can you be more specific about how it "doesn't work"? Are you selecting the camera in the viewport drop-down before rendering?

  • marcelle19marcelle19 Posts: 174

    Gordig said:

    Can you be more specific about how it "doesn't work"? Are you selecting the camera in the viewport drop-down before rendering?

    Yes. I position the camera, after loading it, and have it selected in the viewport drop-down before rendering; everything looks good, the camera seems in the right position, yet the render comes out blank - like the camera wasn't even in the scene.

  • GordigGordig Posts: 10,169

    Is anything blocking the camera? Is the scene lit sufficiently? Do you have an Nvidia GPU with CPU fallback disabled?

  • marcelle19marcelle19 Posts: 174

    Gordig said:

    Is anything blocking the camera? Is the scene lit sufficiently? Do you have an Nvidia GPU with CPU fallback disabled?

    I do not see anything blocking the camera. There is sufficient light. I have a Niviida GPU with CPU fallback disabled.

  • GordigGordig Posts: 10,169

    marcelle19 said:

    Gordig said:

    Is anything blocking the camera? Is the scene lit sufficiently? Do you have an Nvidia GPU with CPU fallback disabled?

    I have a Niviida GPU with CPU fallback disabled.

    That's probably your answer, then. If CPU fallback is disabled, and the scene exceeds your GPU's VRAM capacity, then the render ends. Try optimizing your scene and/or enabling the CPU.  

  • marcelle19marcelle19 Posts: 174

    Gordig said:

    marcelle19 said:

    Gordig said:

    Is anything blocking the camera? Is the scene lit sufficiently? Do you have an Nvidia GPU with CPU fallback disabled?

    I have a Niviida GPU with CPU fallback disabled.

    That's probably your answer, then. If CPU fallback is disabled, and the scene exceeds your GPU's VRAM capacity, then the render ends. Try optimizing your scene and/or enabling the CPU.  

    I've done scenes just a big, and bigger, with the current settings, and the render worked just fine. I'm thinking it has more to do with my being a novice at this and not knowing the proper settings for the camera. I was taught - again, by members who are more knowledgeable and experienced than I am - that utilizing the CPU in any sense, when one has an adequate GPU, will make the render take much longer, and that was my experience when I first started doing renders.

    I appreciate your interaction with me on this: Any other suggestions? Are there any files or screenshots which would help you to help me?

  • GordigGordig Posts: 10,169

    Humor me; enable CPU rendering, and try a render. If it starts to render, you can cancel it immediately, but you'll have your answer. 
     

    You say that you've rendered scenes as big, but do you actually know how big your scene is in the metrics that matter? The important factors are the number and size of texture maps and, to a lesser extent, the complexity of the geometry. The number of different objects in your scene tells you nothing about how much VRAM it will take to render. 

  • PerttiAPerttiA Posts: 10,024

    marcelle19 said:

    I've done scenes just a big, and bigger, with the current settings, and the render worked just fine. I'm thinking it has more to do with my being a novice at this and not knowing the proper settings for the camera. I was taught - again, by members who are more knowledgeable and experienced than I am - that utilizing the CPU in any sense, when one has an adequate GPU, will make the render take much longer, and that was my experience when I first started doing renders.

    I appreciate your interaction with me on this: Any other suggestions? Are there any files or screenshots which would help you to help me?

    How do you measure "as Big and Bigger"?... 

    Even adding a pair of certain boots can increase the memory load to a level that cannot be rendered on any other GPU than 3090

    Allowing fallback to CPU is not going to increase the rendering time when the scene fits VRAM of the GPU

  • marcelle19marcelle19 Posts: 174

    Thanks, guys - I'll give that a try and get back to you.

  • marcelle19marcelle19 Posts: 174

    I followed your instructions and it worked great. Thank you so much for your help.

    If I have more questions about using cameras, I'll post back to this thread, rather than start another.

    Thanks again.

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