Rendering学習日記

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jrManのｓｒｃのコンパイル

クラスパスを指定しておくのですね。
C:\jrman-0_4\src>javac -classpath %JRMAN_HOME%\jar\jrman.jar;%JRMAN_HOME%\jar\vecmath.jar;%JRMAN_HOME%\jar\commons-cli-1.0.jar DisplacementBumptest.java

C:\jrman-0_4\src>javac -classpath %JRMAN_HOME%\jar\jrman.jar;%JRMAN_HOME%\jar\vecmath.jar;%JRMAN_HOME%\jar\commons-cli-1.0.jar SurfaceClouds.java

コンパイルはできましたが、サーフィスとディスプレイスメント、使い方どうなんでしょう。
課題です。

jrManのShader追加

javaについて、わかったことまとめ。

(1)Shaderとなるjavaをクラスにコンパイルする。
(2)jarコマンドを使って、そのクラスをjrMan.jarに追加する。
(3)jrman で rendering

以下のようなコンスタントシェーダを作成する。
folowing : SurfaceFirst.java.



import javax.vecmath.Color3f;



import org.jrman.grid.BooleanGrid;

import org.jrman.grid.Color3fGrid;

import org.jrman.grid.FloatGrid;

import org.jrman.render.ShaderVariables;

import org.jrman.shaders.SurfaceShader;



/*

 SurfaceFirst.java

*/



public class SurfaceFirst extends SurfaceShader {

    

    public void shade(ShaderVariables sv) {

        super.shade(sv);

        sv.Oi.set(sv.Os);

        sv.Ci.mul(sv.Cs, sv.Oi);

    }

}

上記のシェーダをmyshaderフォルダに保存しておく。
以下のようにコンパイルする。
C:\RIB\jrman-0_4>javac -classpath %JRMAN_HOME%\jar\jrman.jar;%JRMAN_HOME%\jar\ve
cmath.jar;%JRMAN_HOME%\jar\commons-cli-1.0.jar myshader/SurfaceFirst.java

続いて、クラスをjrMan.jarに追加する。
C:\RIB\jrman-0_4>cd jar

C:\RIB\jrman-0_4\jar>jar uvf jrman.jar %JRMAN_HOME%\myshader\SurfaceFirst.class
C:/RIB/jrman-0_4/myshader/SurfaceFirst.class を追加中です。(入 = 642) (出 = 359)
(44% 収縮されました)

C:\RIB\jrman-0_4\jar>cd..

bin\jrman.batのclasspathにmyshaderを追加、書き換える

set CLASSPATH=%JRMAN_HOME%\jar\jrman.jar;%JRMAN_HOME%\jar\vecmath.jar;%JRMAN_HOME%\jar\commons-cli-1.0.jar;%JRMAN_HOME%\myshader

以下をfirst.ribで保存する。

Display "first.tif" "framebuffer" "rgb"
Projection "perspective" "fov" [45]
LightSource "ambientlight" 1 "intensity" [0.2]
LightSource "spotlight" 2 "from" [-1 1 0 ] "to" [0 0 3] "intensity" [3]
Translate 0 0 3
WorldBegin
Color [1 0 0]
Surface "first"
Sphere 1 -1 1 360
WorldEnd

Happy Rendering!!
C:\RIB\jrman-0_4>jrman first.rib

jrManのクラスをコンパイル

jrManのシェーダを作ってみようと、ややこしい作業をしている。
ファイル名は、正確につけておかないと怒られる。

C:\RIB\jrman-0_4>jrman tramp.rib
Exception in thread "main" java.lang.NoClassDefFoundError: SurfaceTramp (wrong n
ame: Surfacetramp)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.jrman.shaders.SurfaceShader.createShader(SurfaceShader.java:172)
at org.jrman.parser.Parser.setSurface(Parser.java:740)
at org.jrman.parser.keywords.KeywordSurface.parse(KeywordSurface.java:33
)
at org.jrman.parser.Parser.parse(Parser.java:242)
at org.jrman.main.JRMan.main(JRMan.java:80)

大文字、小文字、厳密に命名しましょう。
シェーダ名、SurfaceTrampでした。 (wrong n
ame: Surfacetramp)になっていますね。

まだまだ理解不足です。勉強ですね。

jrManのRIBでは、Surface "tramp"と書いてOKな仕様になっています。

jrManでblend shaderをつくる

RSLシェーディング言語だと、
green=color "rgb" (0,1,0);
Ct=(1-s)*Cs+s*green;

どうやるのか、コンパイルするとエラー!!
SurfaceBlend.java:84: シンボルを見つけられません。
シンボル: メソッド add(float,org.jrman.grid.Color3fGrid)
場所 : org.jrman.grid.Color3fGrid のクラス
ct1.add(1.0f,ct1);
^
エラー 1 個

なので、ct1.sub(specularcolor,ct1);としたら、コンパイルした。color型なのですね。

以下、クラスファイルのソース



/*

 SurfaceBlend.java

*/



import javax.vecmath.Color3f;



import org.jrman.grid.Color3fGrid;

import org.jrman.grid.Vector3fGrid;

import org.jrman.parameters.Declaration;

import org.jrman.parameters.UniformScalarFloat;

import org.jrman.parameters.UniformScalarTuple3f;

import org.jrman.render.ShaderVariables;

import org.jrman.shaders.SurfaceShader;



public class SurfaceBlend extends SurfaceShader {



    private static Vector3fGrid vg1 = new Vector3fGrid();



    private static Vector3fGrid vg2 = new Vector3fGrid();



    private static Color3fGrid cg1 = new Color3fGrid();



    private static Color3fGrid cg2 = new Color3fGrid();



    private static Color3fGrid cg3 = new Color3fGrid();



    private static Color3fGrid ct1 = new Color3fGrid();



    private static Color3f specularcolor = new Color3f();

    

    private static Color3f color1 = new Color3f();



    protected void initDefaults() {

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ka", "uniform float"), 1f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Kd", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ks", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("roughness", "uniform float"), .1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("specularcolor", "uniform color"),

                1f,

                1f,

                1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("color1", "uniform color"),

                0f,

                1f,

                0f));

    }



    public void shade(ShaderVariables sv) {

        super.shade(sv);

        UniformScalarFloat paramKa = (UniformScalarFloat) getParameter(sv, "Ka");

        final float Ka = paramKa.getValue();

        UniformScalarFloat paramKd = (UniformScalarFloat) getParameter(sv, "Kd");

        final float Kd = paramKd.getValue();

        UniformScalarFloat paramKs = (UniformScalarFloat) getParameter(sv, "Ks");

        final float Ks = paramKs.getValue();

        UniformScalarFloat paramRoughness = (UniformScalarFloat) getParameter(sv, "roughness");

        final float roughness = paramRoughness.getValue();

        UniformScalarTuple3f paramSpecularcolor =

            (UniformScalarTuple3f) getParameter(sv, "specularcolor");

        paramSpecularcolor.getValue(specularcolor);

        UniformScalarTuple3f paramColor1 =

            (UniformScalarTuple3f) getParameter(sv, "color1");

        paramColor1.getValue(color1);

		

        vg1.normalize(sv.N);

        vg1.faceforward(vg1, sv.I);

        vg2.normalize(sv.I);

        vg2.negate(vg2);

        

        ct1.set(sv.s);

        

        cg3.set(color1);

        cg3.mul(ct1,cg3);

        

        ct1.sub(specularcolor,ct1);

        

        ct1.mul(ct1,sv.Cs);

        ct1.add(ct1,cg3);

        

        sv.Oi.set(sv.Os);

        ambient(sv, cg1);

        cg3.set(Ka);

        cg1.mul(cg1, cg3);

        diffuse(sv, vg1, cg2);

        cg3.set(Kd);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        specular(sv, vg1, vg2, roughness, cg2);

        cg3.set(Ks);

        cg2.mul(cg2, cg3);

        cg3.set(specularcolor);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        cg1.mul(cg1, ct1);

        sv.Ci.mul(sv.Os, cg1);

    }



}

カラー変更できるようにしておいたので、良いですね。



Display "blendtest.tif" "framebuffer" "rgb"

Format 640 480 1

Projection "perspective" "fov" [45]

LightSource "ambientlight" 1 "intensity" [0.2]

LightSource "spotlight" 2 "from" [-1 1 0 ] "to" [0 0 3] "intensity" [10]

Translate 0 0 3

WorldBegin

Color [1 0 0]

Surface "blend" "color color1" [0.2 0.4 0.6]

Rotate 10 1 0 0

#Rotate 180 1 0 0

#Patch "bilinear" "P" [-1 -1 0 1 -1 0 -1 1 0 1 1 0]

Sphere 1 -1 1 360

WorldEnd

引き続き、実験君です。
jrManはレンダーマンの勉強になります。
javaについて学ぶ機会になっているかも・・・

ありがとうございます。
Thanks Gerardo.

jrManでblend shaderをつくる　その2

SurfaceShader.javaを確認したら、

private final static Color3f WHITE = new Color3f(1f, 1f, 1f);

これですね。
ということで、書き直しました。
(1-s)を

ct1.sub(WHITE,ct1);

ありがとうございます。

jrMan shaderでmix()をつかうその1

javaファイルを見ながら、地道に実験してみる。Essential RenderManを参考にして、mixtest shaderを作ってみた。RenderManシェーダの基本ですね。jrManの中でmix()がどうなっているか、src folderのFloatGrid.javaに実装されていました。



/*

 SurfaceMixtest.java

*/



import javax.vecmath.Color3f;



import org.jrman.grid.FloatGrid;

import org.jrman.grid.Color3fGrid;

import org.jrman.grid.Vector3fGrid;

import org.jrman.parameters.Declaration;

import org.jrman.parameters.UniformScalarFloat;

import org.jrman.parameters.UniformScalarTuple3f;

import org.jrman.render.ShaderVariables;

import org.jrman.shaders.SurfaceShader;



public class SurfaceMixtest extends SurfaceShader {



    private static Vector3fGrid vg1 = new Vector3fGrid();



    private static Vector3fGrid vg2 = new Vector3fGrid();



    private static FloatGrid fg1 = new FloatGrid();



    private static Color3fGrid cg1 = new Color3fGrid();



    private static Color3fGrid cg2 = new Color3fGrid();



    private static Color3fGrid cg3 = new Color3fGrid();



    private static Color3fGrid ct1 = new Color3fGrid();



    private static Color3f specularcolor = new Color3f();

    

    private static Color3f color1 = new Color3f();

    

    private static Color3f WHITE = new Color3f(1f, 1f, 1f);



    protected void initDefaults() {

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ka", "uniform float"), 1f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Kd", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ks", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("roughness", "uniform float"), .1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("specularcolor", "uniform color"),

                1f,

                1f,

                1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("color1", "uniform color"),

                0f,

                1f,

                0f));

    }



    public void shade(ShaderVariables sv) {

        super.shade(sv);

        UniformScalarFloat paramKa = (UniformScalarFloat) getParameter(sv, "Ka");

        final float Ka = paramKa.getValue();

        UniformScalarFloat paramKd = (UniformScalarFloat) getParameter(sv, "Kd");

        final float Kd = paramKd.getValue();

        UniformScalarFloat paramKs = (UniformScalarFloat) getParameter(sv, "Ks");

        final float Ks = paramKs.getValue();

        UniformScalarFloat paramRoughness = (UniformScalarFloat) getParameter(sv, "roughness");

        final float roughness = paramRoughness.getValue();

        UniformScalarTuple3f paramSpecularcolor =

            (UniformScalarTuple3f) getParameter(sv, "specularcolor");

        paramSpecularcolor.getValue(specularcolor);

        UniformScalarTuple3f paramColor1 =

            (UniformScalarTuple3f) getParameter(sv, "color1");

        paramColor1.getValue(color1);

		

        vg1.normalize(sv.N);

        vg1.faceforward(vg1, sv.I);

        vg2.normalize(sv.I);

        vg2.negate(vg2);

        

        fg1.set(sv.t);

        

        cg3.set(color1);

        

        sv.Cs.mix(sv.Cs, cg3, fg1);

        

        ct1.set(sv.Cs);

        

        sv.Oi.set(sv.Os);

        ambient(sv, cg1);

        cg3.set(Ka);

        cg1.mul(cg1, cg3);

        diffuse(sv, vg1, cg2);

        cg3.set(Kd);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        specular(sv, vg1, vg2, roughness, cg2);

        cg3.set(Ks);

        cg2.mul(cg2, cg3);

        cg3.set(specularcolor);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        cg1.mul(cg1, ct1);

        sv.Ci.mul(sv.Os, cg1);

    }



}

RIBは以下のようになります。tを使いました。



#mixtest.rib

Display "mixtest.png" "framebuffer" "rgb"

Format 640 480 1

Projection "perspective" "fov" [45]

LightSource "ambientlight" 1 "intensity" [0.2]

LightSource "spotlight" 2 "from" [-1 1 0 ] "to" [0 0 3] "intensity" [10]

Translate 0 0 3

WorldBegin

Color [1 0 0]

Surface "mixtest"

Rotate 90 1 0 0

#Rotate 180 1 0 0

#Patch "bilinear" "P" [-1 -1 0 1 -1 0 -1 1 0 1 1 0]

Sphere 1 -1 1 360

WorldEnd

jrMan shaderでmix()をつかうその2

たったこれだけを記述するのに、えらく悩みました。



if(orientation==0)

	    Ct=mix(Cs,otherColor,s);

    else

	    Ct=mix(Cs,otherColor,t);

orientationはStringにした。
作りながら、悩み、勉強になります。基本的なjava理解必要かも。
RIBは色を変更、orientationでstが入れ替わります。
Essential RenderManを参考にしました。



/*

 SurfaceRamptest.java

*/



import javax.vecmath.Color3f;



import org.jrman.grid.FloatGrid;

import org.jrman.grid.Color3fGrid;

import org.jrman.grid.Vector3fGrid;

import org.jrman.parameters.Declaration;

import org.jrman.parameters.UniformScalarFloat;

import org.jrman.parameters.UniformScalarTuple3f;

import org.jrman.parameters.UniformScalarString;

import org.jrman.render.ShaderVariables;

import org.jrman.shaders.SurfaceShader;



public class SurfaceRamptest extends SurfaceShader {



    private static Vector3fGrid vg1 = new Vector3fGrid();



    private static Vector3fGrid vg2 = new Vector3fGrid();



    private static FloatGrid fg1 = new FloatGrid();



    private static FloatGrid fg2 = new FloatGrid();



    private static Color3fGrid cg1 = new Color3fGrid();



    private static Color3fGrid cg2 = new Color3fGrid();



    private static Color3fGrid cg3 = new Color3fGrid();



    private static Color3fGrid ct1 = new Color3fGrid();



    private static Color3f specularcolor = new Color3f();

    

    private static Color3f color1 = new Color3f();

    

    private static Color3f WHITE = new Color3f(1f, 1f, 1f);



    protected void initDefaults() {

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ka", "uniform float"), 1f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Kd", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ks", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarString(new Declaration("orientation", "string"), "1"));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("roughness", "uniform float"), .1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("specularcolor", "uniform color"),

                1f,

                1f,

                1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("color1", "uniform color"),

                0f,

                1f,

                0f));

    }



    public void shade(ShaderVariables sv) {

        super.shade(sv);

        UniformScalarFloat paramKa = (UniformScalarFloat) getParameter(sv, "Ka");

        final float Ka = paramKa.getValue();

        UniformScalarFloat paramKd = (UniformScalarFloat) getParameter(sv, "Kd");

        final float Kd = paramKd.getValue();

        UniformScalarFloat paramKs = (UniformScalarFloat) getParameter(sv, "Ks");

        final float Ks = paramKs.getValue();

        UniformScalarString paramOrientation =

            (UniformScalarString) getParameter(sv, "orientation");

        final String orientation = paramOrientation.getValue();

        UniformScalarFloat paramRoughness = (UniformScalarFloat) getParameter(sv, "roughness");

        final float roughness = paramRoughness.getValue();

        UniformScalarTuple3f paramSpecularcolor =

            (UniformScalarTuple3f) getParameter(sv, "specularcolor");

        paramSpecularcolor.getValue(specularcolor);

        UniformScalarTuple3f paramColor1 =

            (UniformScalarTuple3f) getParameter(sv, "color1");

        paramColor1.getValue(color1);

		

        vg1.normalize(sv.N);

        vg1.faceforward(vg1, sv.I);

        vg2.normalize(sv.I);

        vg2.negate(vg2);

        

        fg1.set(sv.s);

        fg2.set(sv.t);

		cg3.set(color1);

        

        if (orientation.equals("0")) {

            sv.Cs.mix(sv.Cs, cg3, fg1);

        }

        if (orientation.equals("1")) {

            sv.Cs.mix(sv.Cs, cg3, fg2);

        }

        

        ct1.set(sv.Cs);



        sv.Oi.set(sv.Os);

        ambient(sv, cg1);

        cg3.set(Ka);

        cg1.mul(cg1, cg3);

        diffuse(sv, vg1, cg2);

        cg3.set(Kd);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        specular(sv, vg1, vg2, roughness, cg2);

        cg3.set(Ks);

        cg2.mul(cg2, cg3);

        cg3.set(specularcolor);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        cg1.mul(cg1, ct1);

        sv.Ci.mul(sv.Os, cg1);

    }



}



#ramptest.rib

Display "ramptest.png" "framebuffer" "rgb"

Format 640 480 1

Projection "perspective" "fov" [45]

LightSource "ambientlight" 1 "intensity" [0.2]

LightSource "spotlight" 2 "from" [-1 1 0 ] "to" [0 0 3] "intensity" [10]

Translate 0 0 3

WorldBegin

Color [0 1 0]

Surface "ramptest" "color color1" [0 0.2 1] "string orientation" "1"

Rotate 90 1 0 0

#Rotate 180 1 0 0

#Patch "bilinear" "P" [-1 -1 0 1 -1 0 -1 1 0 1 1 0]

Sphere 1 -1 1 360

WorldEnd

jrManでbandtest shader

できたと思ったら、てかりがない??
再検討するか。仕様かな??勉強ですね。
と、いろいろいじって青系の色にしてみたら、てかりしてました。笑



/*

 SurfaceBandtest.java

*/



import javax.vecmath.Color3f;



import org.jrman.grid.BooleanGrid;

import org.jrman.grid.FloatGrid;

import org.jrman.grid.Color3fGrid;

import org.jrman.grid.Vector3fGrid;

import org.jrman.parameters.Declaration;

import org.jrman.parameters.UniformScalarFloat;

import org.jrman.parameters.UniformScalarTuple3f;

import org.jrman.parameters.UniformScalarString;

import org.jrman.render.ShaderVariables;

import org.jrman.shaders.SurfaceShader;



public class SurfaceBandtest extends SurfaceShader {



    private static Vector3fGrid vg1 = new Vector3fGrid();



    private static Vector3fGrid vg2 = new Vector3fGrid();



    private static FloatGrid fg1 = new FloatGrid();



    private static FloatGrid fg2 = new FloatGrid();



    private static Color3fGrid cg1 = new Color3fGrid();



    private static Color3fGrid cg2 = new Color3fGrid();



    private static Color3fGrid cg3 = new Color3fGrid();



    private static Color3fGrid cg4 = new Color3fGrid();



    private static Color3fGrid ct1 = new Color3fGrid();



    private static Color3f specularcolor = new Color3f();

    

    private static Color3f color1 = new Color3f();

    

    private static Color3f color2 = new Color3f();

    

    private static Color3f WHITE = new Color3f(1f, 1f, 1f);



    private static BooleanGrid cond = new BooleanGrid();



    protected void initDefaults() {

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ka", "uniform float"), 1f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Kd", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ks", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("roughness", "uniform float"), .1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("specularcolor", "uniform color"),

                1f,

                1f,

                1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("color1", "uniform color"),

                0f,

                1f,

                0f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("color2", "uniform color"),

                1f,

                0f,

                0f));

    }



    public void shade(ShaderVariables sv) {

        super.shade(sv);

        UniformScalarFloat paramKa = (UniformScalarFloat) getParameter(sv, "Ka");

        final float Ka = paramKa.getValue();

        UniformScalarFloat paramKd = (UniformScalarFloat) getParameter(sv, "Kd");

        final float Kd = paramKd.getValue();

        UniformScalarFloat paramKs = (UniformScalarFloat) getParameter(sv, "Ks");

        final float Ks = paramKs.getValue();

        UniformScalarFloat paramRoughness = (UniformScalarFloat) getParameter(sv, "roughness");

        final float roughness = paramRoughness.getValue();

        UniformScalarTuple3f paramSpecularcolor =

            (UniformScalarTuple3f) getParameter(sv, "specularcolor");

        paramSpecularcolor.getValue(specularcolor);

        UniformScalarTuple3f paramColor1 =

            (UniformScalarTuple3f) getParameter(sv, "color1");

        paramColor1.getValue(color1);

		UniformScalarTuple3f paramColor2 =

            (UniformScalarTuple3f) getParameter(sv, "color2");

        paramColor2.getValue(color2);

        

        vg1.normalize(sv.N);

        vg1.faceforward(vg1, sv.I);

        vg2.normalize(sv.I);

        vg2.negate(vg2);

        

        fg1.set(sv.s);

        fg2.set(sv.t);

        cg3.set(color1);

        cg4.set(color2);

		

        cond.less(fg2, 0.5f);

        sv.Cs.set(cg3,cond);

        

        cond.not(cond);

        sv.Cs.set(cg4,cond);

		

        ct1.set(sv.Cs);

		

        sv.Oi.set(sv.Os);

        ambient(sv, cg1);

        cg3.set(Ka);

        cg1.mul(cg1, cg3);

        diffuse(sv, vg1, cg2);

        cg3.set(Kd);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        specular(sv, vg1, vg2, roughness, cg2);

        cg3.set(Ks);

        cg2.mul(cg2, cg3);

        cg3.set(specularcolor);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        cg1.mul(cg1, ct1);

        sv.Ci.mul(sv.Os, cg1);

    }



}

jrManでsmoothstep

fg1.set(sv.s);
fg2.set(sv.t);
cg3.set(color1);
cg4.set(color2);

fg1.smoothstep(0.4f,0.6f,fg2);

sv.Cs.mix(cg3, cg4, fg1);

ct1.set(sv.Cs);

jrManでrepeating pattern

三角、三角、つくってみた。
SurfaceSankakutest.java
"Sankaku" is a triangle.

勉強ですね。
以下、ソース



/*

 SurfaceSankakutest.java

*/



import javax.vecmath.Color3f;



import org.jrman.grid.BooleanGrid;

import org.jrman.grid.FloatGrid;

import org.jrman.grid.Color3fGrid;

import org.jrman.grid.Vector3fGrid;

import org.jrman.parameters.Declaration;

import org.jrman.parameters.UniformScalarFloat;

import org.jrman.parameters.UniformScalarTuple3f;

import org.jrman.parameters.UniformScalarString;

import org.jrman.render.ShaderVariables;

import org.jrman.shaders.SurfaceShader;



public class SurfaceSankakutest extends SurfaceShader {



    private static Vector3fGrid vg1 = new Vector3fGrid();



    private static Vector3fGrid vg2 = new Vector3fGrid();



    private static FloatGrid fg1 = new FloatGrid();



    private static FloatGrid fg2 = new FloatGrid();



    private static Color3fGrid cg1 = new Color3fGrid();



    private static Color3fGrid cg2 = new Color3fGrid();



    private static Color3fGrid cg3 = new Color3fGrid();



    private static Color3fGrid ct1 = new Color3fGrid();



    private static Color3f specularcolor = new Color3f();

    

    private static Color3f color1 = new Color3f();

    

    private static Color3f WHITE = new Color3f(1f, 1f, 1f);



    private static BooleanGrid cond = new BooleanGrid();



    protected void initDefaults() {

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ka", "uniform float"), 1f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Kd", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("Ks", "uniform float"), .5f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("roughness", "uniform float"), .1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("specularcolor", "uniform color"),

                1f,

                1f,

                1f));

        defaultParameters.addParameter(

            new UniformScalarTuple3f(

                new Declaration("color1", "uniform color"),

                0f,

                1f,

                0f));

        defaultParameters.addParameter(

            new UniformScalarFloat(new Declaration("repeatCount", "uniform float"), 5f));

    }



    public void shade(ShaderVariables sv) {

        super.shade(sv);

        UniformScalarFloat paramKa = (UniformScalarFloat) getParameter(sv, "Ka");

        final float Ka = paramKa.getValue();

        UniformScalarFloat paramKd = (UniformScalarFloat) getParameter(sv, "Kd");

        final float Kd = paramKd.getValue();

        UniformScalarFloat paramKs = (UniformScalarFloat) getParameter(sv, "Ks");

        final float Ks = paramKs.getValue();

        UniformScalarFloat paramRoughness = (UniformScalarFloat) getParameter(sv, "roughness");

        final float roughness = paramRoughness.getValue();

        UniformScalarTuple3f paramSpecularcolor =

            (UniformScalarTuple3f) getParameter(sv, "specularcolor");

        paramSpecularcolor.getValue(specularcolor);

        UniformScalarTuple3f paramColor1 =

            (UniformScalarTuple3f) getParameter(sv, "color1");

        paramColor1.getValue(color1);

        UniformScalarFloat paramRepeatCount = (UniformScalarFloat) getParameter(sv, "repeatCount");

        final float repeatCount = paramRepeatCount.getValue();

        

        vg1.normalize(sv.N);

        vg1.faceforward(vg1, sv.I);

        vg2.normalize(sv.I);

        vg2.negate(vg2);

        

        fg1.set(sv.s);

        fg2.set(sv.t);

        cg3.set(color1);

		

        fg1.mul(fg1,repeatCount);

        fg1.mod(fg1,1f);

        fg2.mul(fg2,repeatCount);

        fg2.mod(fg2,1f);

		

        fg1.step(fg1,fg2);

		

        sv.Cs.mix(sv.Cs, cg3, fg1);

		

        ct1.set(sv.Cs);

		

        sv.Oi.set(sv.Os);

        ambient(sv, cg1);

        cg3.set(Ka);

        cg1.mul(cg1, cg3);

        diffuse(sv, vg1, cg2);

        cg3.set(Kd);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        specular(sv, vg1, vg2, roughness, cg2);

        cg3.set(Ks);

        cg2.mul(cg2, cg3);

        cg3.set(specularcolor);

        cg2.mul(cg2, cg3);

        cg1.add(cg1, cg2);

        cg1.mul(cg1, ct1);

        sv.Ci.mul(sv.Os, cg1);

    }



}

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Rendering学習日記

Menu

jrManのｓｒｃのコンパイル

jrManのShader追加

jrManのクラスをコンパイル

jrManでblend shaderをつくる

jrManでblend shaderをつくる　その2

jrMan shaderでmix()をつかうその1

jrMan shaderでmix()をつかうその2

jrManでbandtest shader

jrManでsmoothstep

jrManでrepeating pattern

連絡先

Rendering学習日記

Menu

jrManのｓｒｃのコンパイル

jrManのShader追加

jrManのクラスをコンパイル

jrManでblend shaderをつくる

jrManでblend shaderをつくる その2

jrMan shaderでmix()をつかう その1

jrMan shaderでmix()をつかう その2

jrManでbandtest shader

jrManでsmoothstep

jrManでrepeating pattern

連絡先

jrManでblend shaderをつくる　その2

jrMan shaderでmix()をつかうその1

jrMan shaderでmix()をつかうその2