hey Merry Christmas to all
finally i finished the background
the tree at the back are cherry blossom , japanese called them sakura
BG
character
grass
at first i used harifarm(the hair plugin i used for the hair of the character) to make the grass. after finished , i think it was quite difficult to make a good render with other object which i would create later. it is because hairfarm need to render in scanline. while the object like the tree , stone, flower . they need to render in mentalray. this would make the composition process difficult.
so i did some research on some good environment plugin to make something like forest. i used a plugin called forestpack. actually it is a scatter object plugin , that mean a single object u create, like tree, grass etc,it scatters in a define area with multiple control. it is not duplicate the object. each of the object scattered are instance . so it can saved the render time and RAM.
i used the free version which don’t have some function, but it was fine still not so important as it is a background. free version can’t scatter object on terrain (non-plane object) , no color varation on individual element .for instance, that mean u can’t have color variation on each of the leaf on the tree. for a real tree, each of the leaf get many difference. one may be a bit yellow, brown, while others are green . but u can still have some color variation on the whole tree including the leaves, trunk.
tree
for creating the tree, i also checked about which plugin is better. i sure using plugin can get a better control than tradition modelling .there are some default tree template inside 3ds max. they are also have japanese sakura(the title in the template said it is) . but i don’t see any similarity between the japanese one with the overall shape. the material is lazy . with only 1 simple alpha .
so i tried 2 free plugin.1 require another program and output to max. but i didn’t like the limited of control. another one is a script ATree3D. a simple 3dmax script . run inside max and u get the tree. it makes the tree with spline.the main trunk is the first spline, then scatter another layer of spline with some control like position, direction, size etc. u can have several layers to represent he tree. u can also define with your own object. so u can create the leave or flower or an apple to represent the leaf part. after creating , it become a mesh. with trunk and leaves. but u can modify whenever u want. this is great because i don’t need to lose control of each of the layer as it is already a mesh. it is not spline or have some specific modifier on it. i am not sure how it did, may be there is something inside the mesh.
lighting
i spent some time to tune the lighting . actually it was the same sunlight for the environment and interior. but the problem was the shadow. the light position was from left . so the shadow of the tree on the left side covered the tree on the right side. this made the tree become dark when view from camera position.
i can’t change the interior sunlight as i did a 180 degree animation to find the best position of the sun . the position of the sun can create a good contrast of shadow and details for interior. so i use 2 different lighting on the background and the interior.i used an skylight ,to make a softer shadow, modify the exposure for the skylight. because of adding these i need to tune the interior lighting to match the background. (but did not changing the sunlight position). then change remake the light for the hair (in scanline render)