Explosion Tutorial #1

Here you can learn how to make this basic building explosion in Bryce.

This tutorial assumes you know the basic interface functions.  If you don't understand a term, you should refer to the manual or complete the basic tutorials first.

Click to see full size image!

Here the rock was antialiased, but you may like the texture better if you turn off antialiasing for the rock.  

1. To do that select the rock
2. Select the "A" for attributes
3. Then hold down Shift + Ctrl and click the checkmark.

1. Select the stone
2. Select the option "Show as Box"
3. Click the checkmark to apply

Reposition the duplicate so that it slightly overlaps the first stone.  It's important that you do this step in one motion for the next step to work. 

1. Go to Edit
2. Select Multireplicate
3. Type 10 in the quantity box.
4. Don't change offset.
5. Be sure that the Size is set to 100 in all the planes.

It's also easier if you delete the ground plane.

1. Select all the stones and group them by selecting the "G".
2. Duplicate this group and raise it so that it slightly overlaps the original.
3. Reposition it so that it now sticks out to one end of the wall.
4. Reselect the first group and duplicate again
5. Reposition it so that it is above the second group
6. Select all the groups and group them.

Note: The resultant wall base will look like this.

1. Look at the size of your wall base.  Divide this by 2 and put the negative of that number in the Z coordinate Origin plane. In this case 515.02 divided by 2 is 257.51...so we put -257.51.
2. Duplicate the wall base and rotate it 90 degrees.
3. Reposition it so that it overlaps the first wall at the end.
4. Duplicate again, rotate and reposition until you have the following wall bottom

 

Note: Now is an excellent time to decide what angle of the building you want to render the scene from. Position your camera to that location and set a memory dot for it.

1. Group this wall base
2. Look at its attributes for height
3. Now Multireplicate the wallbase and put in the Y coordinates for position a number slightly less than the height of the wall base. In the rotation in the Y plane, put 90.  I put 10 in this example for quantity. You decide what you want here.

The multireplicated wall base from the position I selected to see the action from.

1. Ok, so this is a large file, and we aren't going to see all the building and so it isn't needed, let's get rid of the unnecessary parts.
2. First "Select All Groups" and "Ungroup" them.
3. Next select the above view that you saved earlier by click its memory dot.
4. Since we now know where the camera will be located, select the unnecessary blocks.

and delete them

Drag the green ball to make this happen.

1. Reposition the exploded stones so that they extend to the best angle from the front of the building It may be necessary to move some individually.
2. Deselect all and then select one of the dispersed stones. 
3. Copy its matrix.
4. Copy its material.
5. Create a new stone.
6. Paste the matrix you previously copied.
7. Paste the material you previously copied.
8. Multi replicate it about 10 times

9. 3d Disperse Size Rotate this stone

10. Do this again for different stones to create a little variety.

The result.

• Go to Solo mode and create a sphere.
• Apply a smoke texture to this sphere from the presets
• This is important! Turn off Cast Shadows and Accept Shadows for all these spheres!

• Apply a fire texture from the presets to these duplicates (they will still be selected so this is easy unless you deselected them)
• This is important! Turn off Cast Shadows and Accept Shadows for all these spheres!
• Disperse/Size these fire spheres
• Select all spheres and exit solo mode
• Reposition the spheres so that they extend out from the wall.