Blended Material test

[OnoSendai]

Working on the mat system.. here's a test render:
It's a blend between a green diffuse material, and an aluminium, high exponent Phong material.




And here's the corresponding xml:

Code: Select all

<material>
		<name>phongmat</name>
	
		<phong>
			<nk_data>nkdata/al.nk</nk_data>
			<diffuse>0.7 0.0 0.0</diffuse>
			<exponent>10000.0</exponent>
			<ior>1.5</ior>
		</phong>		
	</material>
	
	<material>
		<name>diffusemat</name>
	
		<diffuse>
			<colour>0.0 0.7 0.0</colour>
		</diffuse>		
	</material>
	
	
	
	<material>
		<name>subject_mat</name>
		<blend>
			<a_name>phongmat</a_name>
			<b_name>diffusemat</b_name>
			<blend_factor>0.3</blend_factor>
			
			<map>
				<uv_set>albedo</uv_set>
				<path>indigo4.jpg</path>
				<gain>0.01</gain>
				<exponent>1.0</exponent>
				<target>blend_factor</target>
			</map>
		</blend>
	</material>

Thoughts?

Here's the texture that controls the blending:

[tungee]

wow this is real cool!

[afecelis]

wicked! this could end up in a node-based material system!

[OnoSendai]

Yup.. the blend node is basically an interior node in a material tree.
Not sure what other types of nodes would be good tho.. if any.

[tungee]

dielectric with diffuse for semi dieelectric!

[arneoog]

Very Nice indeed!

Material layers would be cool
e.g. CarPaint with diffuse undercoating and glassy overcoating

[OnoSendai]

CarPaint with diffuse undercoating and glassy overcoating

.
That's what the phong material does already.

But yeah, layered materials in general would be cool. A little tricky tho

[Zom-B]

This feature is my No.1 on the "Indigo needs" List
Great you continued working on it!

Does this code also allows to define a alpha chanel,
and is the interaction between the two layers planed,
like in PS for example multiply etc. ?

[OnoSendai]

an alpha channel effect (transparency) will be achievable by blending with a 'null material' that will be available.
Not sure if this is the best way to do alpha blending, but we'll see how it turns out.

[u3dreal]

Hi Ono .. looks reakky nice..

with the node system it will also be possible to blend two blend materials
sounds good to me..

cheers

u3dreal

[manitwo]

Super!

[Kojack]

it must be powerfull ;]

regards,
Raphael

[Kachu]

Very Sweet.

[superbob]

Hey..out of curiosity, when is the next version of Indigo due out? Like...are we talking months..weeks?

I'm loving this multimaterial thing...but I agree, we do need something to help do semi-transparent object like cloth and lampshades.

[OnoSendai]

Dunno when next version will be out.. shouldn't be too long before there's a semi b0rked version to play with

Material tree test:
Uses 5 nodes (3 leaves and 2 internal blend nodes), and two blending textures (indigo writing and checkerboard)




materials:

Code: Select all

<material>
		<name>transmat</name>
		
		<!--specular>
			<transparent>true</transparent>
			<ior>1.5</ior>
			<cauchy_b_coeff>0.0</cauchy_b_coeff>
			<rgb_absorptivity>0 0 0</rgb_absorptivity>
		</specular-->
		
		<diffuse>
			<colour>0.0 0.0 0.8</colour>
		</diffuse>	
	</material>
	
	
	<material>
		<name>phongmat</name>
	
		<phong>
			<nk_data>nkdata/al.nk</nk_data>
			<diffuse>0.7 0.0 0.0</diffuse>
			<exponent>10000.0</exponent>
			<ior>1.5</ior>
		</phong>		
	</material>
	
	<material>
		<name>diffusemat</name>
	
		<diffuse>
			<colour>0.0 0.7 0.0</colour>
		</diffuse>		
	</material>
	
	
	<material>
		<name>intermediate_mat</name>
		
		<blend>
			<a_name>phongmat</a_name>
			<b_name>diffusemat</b_name>
			<blend_factor>0.3</blend_factor>
			
			<map>
				<uv_set>albedo</uv_set>
				<path>indigo4.jpg</path>
				<gain>0.01</gain>
				<exponent>1.0</exponent>
				<target>blend_factor</target>
			</map>
		</blend>
	</material>
	
	
	<material>
		<name>subject_mat</name>
		<blend>
			<a_name>intermediate_mat</a_name>
			<b_name>transmat</b_name>
			<blend_factor>0.5</blend_factor>
			
			<map>
				<uv_set>albedo</uv_set>
				<path>checker.jpg</path>
				<gain>1.0</gain>
				<exponent>1.0</exponent>
				<target>blend_factor</target>
			</map>
		</blend>
	</material>