private void applyLight(GL2 gl) {
// Prepare light parameters.
float SHINE_ALL_DIRECTIONS = 1;
float[] lightPos = {0, 40, -100, SHINE_ALL_DIRECTIONS};
float[] lightColorAmbient = {0.2f, 0.2f, 0.2f, 0.5f};
float[] lightColorDiffuse = {1f, 1f, 1f, 0.5f};
float[] lightColorSpecular = {0.8f, 0.8f, 0.8f, 0.5f};
// Set light parameters.
gl.glLightfv(GL2.GL_LIGHT1, GL2.GL_POSITION, lightPos, 0);
gl.glLightfv(GL2.GL_LIGHT1, GL2.GL_AMBIENT, lightColorAmbient, 0);
gl.glLightfv(GL2.GL_LIGHT1, GL2.GL_SPECULAR, lightColorSpecular, 0);
gl.glLightfv(GL2.GL_LIGHT1, GL2.GL_DIFFUSE, lightColorDiffuse, 0);
gl.glLightfv(GL2.GL_LIGHT2, GL2.GL_POSITION, new float[] {0, 15, -40, SHINE_ALL_DIRECTIONS}, 0);
gl.glLightfv(GL2.GL_LIGHT2, GL2.GL_AMBIENT, lightColorAmbient, 0);
gl.glLightfv(GL2.GL_LIGHT2, GL2.GL_SPECULAR, lightColorSpecular, 0);
gl.glLightfv(GL2.GL_LIGHT2, GL2.GL_DIFFUSE, lightColorDiffuse, 0);
// Enable lighting in GL.
gl.glEnable(GL2.GL_LIGHT1);
// gl.glEnable(GL2.GL_LIGHT2);
gl.glEnable(GL2.GL_LIGHTING);
// Set material properties.
// float[] rgba = {0.3f, 0.5f, 1f};
float[] rgba = {0.8f, 0.8f, 1f, 1f};
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT, rgba, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_SPECULAR, rgba, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_DIFFUSE, rgba, 0);
gl.glMaterialf(GL2.GL_FRONT, GL2.GL_SHININESS, 20f);
}
public void draw(GL2 gl) {
GLUT glut = new GLUT();
// Color
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, new float[] {1, 1, 1, 1}, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_EMISSION, new float[] {0, 0, 0, 1}, 0);
gl.glPushMatrix();
gl.glTranslated(x, y, z);
glut.glutSolidCylinder(0.05, 0.5, 12, 1);
gl.glTranslated(0, 0, 0.5);
gl.glRotated(horizontalDir * 180 / Math.PI + 180, 0, 0, 1);
gl.glRotated(verticalDir * 180 / Math.PI, 0, 1, 0);
ModelTurret.draw(gl);
gl.glPopMatrix();
}
private void renderRedTeapot(GL2 gl, float x, float y, float z) {
float mat[] = new float[4];
gl.glPushMatrix();
gl.glTranslatef(x, y, z);
mat[0] = 0.1745f;
mat[1] = 0.01175f;
mat[2] = 0.01175f;
mat[3] = 1.0f;
gl.glMaterialfv(GL.GL_FRONT, GL2.GL_SPECULAR, mat, 0);
mat[0] = 0.61424f;
mat[1] = 0.04136f;
mat[2] = 0.04136f;
gl.glMaterialfv(GL.GL_FRONT, GL2.GL_DIFFUSE, mat, 0);
mat[0] = 0.727811f;
mat[1] = 0.626959f;
mat[2] = 0.626959f;
gl.glMaterialfv(GL.GL_FRONT, GL2.GL_SPECULAR, mat, 0);
gl.glMaterialf(GL.GL_FRONT, GL2.GL_SHININESS, 0.6f * 128.0f);
glut.glutSolidTeapot(1.0);
gl.glPopMatrix();
}
@Override
public void init(GLAutoDrawable pDrawable) {
// Use debug pipeline
// drawable.setGL(new DebugGL(drawable.getGL()));
GL2 gl = pDrawable.getGL().getGL2();
// System.err.println("INIT GL IS: " + gl.getClass().getName());
checkRequiredExtensions(gl);
// Enable VSync
gl.setSwapInterval(1);
// Setup the drawing area and shading mode
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.glClearDepth(1.0);
// sky blue color
gl.glClearColor(0.17f, 0.65f, 0.92f, 0.0f);
gl.glEnable(GL.GL_DEPTH_TEST);
// int[] depth_bits = new int[1];
// gl.glGetIntegerv(GL.GL_DEPTH_BITS, depth_bits, 0);
gl.glShadeModel(GLLightingFunc.GL_SMOOTH);
float[] grayCol = {0.8f, 0.8f, 0.8f, 1.0f};
// float[] blueCol = {0.0f, 0.0f, 0.8f, 1.0f};
gl.glMaterialfv(GL.GL_FRONT, GLLightingFunc.GL_AMBIENT_AND_DIFFUSE, grayCol, 0);
// this.modelRender = ModelRender.getInstance();
axisLabels.init();
renderJosm.init(gl);
// selectionDrawUtil.init(gl);
compass.init(gl);
lightRender.init(gl);
}
/**
* //! Draw an x-y-z frame.
*
* @param aAxisLengthScale
* @param aAxisThicknessScale
* @param aModifyMaterialState
*/
public static void jDrawFrame(
final double aAxisLengthScale,
final double aAxisThicknessScale,
final boolean aModifyMaterialState) {
// Triangle vertices:
int nTriangles = 8;
// Quad vertices:
int nQuads = 16;
GL2 gl = GLContext.getCurrent().getGL().getGL2();
// set material properties
float[] fnull = {0, 0, 0, 0};
gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_SPECULAR, fnull, 0);
gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_EMISSION, fnull, 0);
gl.glColorMaterial(GL2.GL_FRONT_AND_BACK, GL2.GL_AMBIENT_AND_DIFFUSE);
gl.glEnable(GL2.GL_COLOR_MATERIAL);
gl.glPolygonMode(GL2.GL_FRONT_AND_BACK, GL2.GL_FILL);
// enable vertex and normal arrays
gl.glEnableClientState(GL2.GL_NORMAL_ARRAY);
gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
if (aModifyMaterialState) {
gl.glEnable(GL2.GL_COLOR_MATERIAL);
gl.glColorMaterial(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE);
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL);
}
for (int k = 0; k < 3; k++) {
gl.glPushMatrix();
// Rotate to the appropriate axis
if (k == 0) {
gl.glRotatef(-90.0f, 0, 1, 0);
gl.glColor3f(1.0f, 0.0f, 0.0f);
} else if (k == 1) {
gl.glRotatef(90.0f, 1, 0, 0);
gl.glColor3f(0.0f, 1.0f, 0.0f);
} else {
gl.glRotatef(180.0f, 1, 0, 0);
gl.glColor3f(0.0f, 0.0f, 1.0f);
}
// scaling
gl.glScaled(aAxisThicknessScale, aAxisThicknessScale, aAxisLengthScale);
// render frame object
gl.glVertexPointer(3, GL2.GL_FLOAT, 0, triVerticesBuffer);
gl.glNormalPointer(GL2.GL_FLOAT, 0, triNormalsBuffer);
gl.glDrawArrays(GL2.GL_TRIANGLES, 0, nTriangles * 3);
gl.glVertexPointer(3, GL2.GL_FLOAT, 0, quadVerticesBuffer);
gl.glNormalPointer(GL2.GL_FLOAT, 0, quadNormalsBuffer);
gl.glDrawArrays(GL2.GL_QUADS, 0, nQuads * 4);
gl.glPopMatrix();
}
// disable vertex and normal arrays
gl.glDisableClientState(GL2.GL_NORMAL_ARRAY);
gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);
}
@Override
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
gl.glShadeModel(GL2.GL_SMOOTH); // Enable Smooth Shading (Gouraud)
// Display the scene according to the current trackball orientation, scale the scene to fit
// better
tbc.prepareForDisplay(drawable);
gl.glScaled(3, 3, 3);
// Add a light
int lightNumber = 0;
float[] position = {lightPos.x, lightPos.y, lightPos.z, 1};
float[] colour = {
lightColR.getFloatValue(), lightColG.getFloatValue(), lightColB.getFloatValue(), 1
};
float[] acolour = {
colour[0] * ambient.getFloatValue(),
colour[1] * ambient.getFloatValue(),
colour[2] * ambient.getFloatValue()
};
gl.glLightfv(GL2.GL_LIGHT0 + lightNumber, GL2.GL_SPECULAR, colour, 0);
gl.glLightfv(GL2.GL_LIGHT0 + lightNumber, GL2.GL_DIFFUSE, colour, 0);
gl.glLightfv(GL2.GL_LIGHT0 + lightNumber, GL2.GL_AMBIENT, acolour, 0);
gl.glLightfv(
GL2.GL_LIGHT0 + lightNumber,
GL2.GL_POSITION,
position,
0); // transformed by the modelview matrix when glLight is called
gl.glEnable(GL2.GL_LIGHT0 + lightNumber);
// Determine which shader to display the scene with
ShaderState customShader = null;
if (viewingMode == 1) {
stateCheckerboard.useProgram(gl, false);
stateWoodcut.useProgram(gl, false);
stateToon.useProgram(gl, false);
statePerFragment.useProgram(gl, usePerFragment);
if (usePerFragment) customShader = statePerFragment;
else customShader = null;
} else if (viewingMode == 2) {
statePerFragment.useProgram(gl, false);
stateWoodcut.useProgram(gl, false);
stateToon.useProgram(gl, false);
stateCheckerboard.useProgram(gl, useCheckerboard);
if (useCheckerboard) customShader = stateCheckerboard;
else customShader = null;
} else if (viewingMode == 3) {
statePerFragment.useProgram(gl, false);
stateCheckerboard.useProgram(gl, false);
stateToon.useProgram(gl, false);
stateWoodcut.useProgram(gl, useWoodcut);
if (useWoodcut) customShader = stateWoodcut;
else customShader = null;
} else if (viewingMode == 4) {
statePerFragment.useProgram(gl, false);
stateCheckerboard.useProgram(gl, false);
stateWoodcut.useProgram(gl, false);
stateToon.useProgram(gl, useToon);
if (useToon) customShader = stateToon;
else customShader = null;
}
// Setup the uniform values that may be used within the current shader
if (customShader != null) {
// Blinn-Phong uniforms
int specExponentUniformLocation = customShader.getUniformLocation(gl, "shininess");
gl.glUniform1f(specExponentUniformLocation, shininess.getFloatValue());
int ambientUniformLocation = customShader.getUniformLocation(gl, "ambient");
gl.glUniform1f(ambientUniformLocation, ambient.getFloatValue());
// Checkerboard uniforms
int colour1UniformLocation = customShader.getUniformLocation(gl, "Color1");
float[] colour1 = {col1R.getFloatValue(), col1G.getFloatValue(), col1B.getFloatValue()};
gl.glUniform3fv(colour1UniformLocation, 1, colour1, 0);
int colour2UniformLocation = customShader.getUniformLocation(gl, "Color2");
float[] colour2 = {col2R.getFloatValue(), col2G.getFloatValue(), col2B.getFloatValue()};
gl.glUniform3fv(colour2UniformLocation, 1, colour2, 0);
int avgColourUniformLocation = customShader.getUniformLocation(gl, "AvgColor");
float[] avgColour = {
(colour1[0] + colour2[0]) / 2, (colour1[1] + colour2[1]) / 2, (colour1[2] + colour2[2]) / 2
};
gl.glUniform3fv(avgColourUniformLocation, 1, avgColour, 0);
int frequencyUniformLocation = customShader.getUniformLocation(gl, "Frequency");
double frequencyValue = frequency.getValue();
frequencyValue = useIntFrequency.getValue() ? Math.round(frequencyValue) : frequencyValue;
gl.glUniform1f(frequencyUniformLocation, (float) frequencyValue);
int useAveragingUniformLocation = customShader.getUniformLocation(gl, "UseAveraging");
gl.glUniform1i(useAveragingUniformLocation, useAveraging.getValue() ? 1 : 0);
int useSmoothStepUniformLocation = customShader.getUniformLocation(gl, "UseSmoothStep");
gl.glUniform1i(useSmoothStepUniformLocation, useSmoothStep.getValue() ? 1 : 0);
// Woodcut uniforms
int timeUniformLocation = customShader.getUniformLocation(gl, "Time");
gl.glUniform1f(timeUniformLocation, time.getFloatValue());
int lightPositionUniformLocation = customShader.getUniformLocation(gl, "LightPosition");
float[] lightPosition = {lightPos.x, lightPos.y, lightPos.z};
gl.glUniform3fv(lightPositionUniformLocation, 1, lightPosition, 0);
// Toon uniforms
int threshHighUniformLocation = customShader.getUniformLocation(gl, "ThresholdHigh");
gl.glUniform1f(threshHighUniformLocation, thresholdHigh.getFloatValue());
int threshMedUniformLocation = customShader.getUniformLocation(gl, "ThresholdMedium");
gl.glUniform1f(threshMedUniformLocation, thresholdMedium.getFloatValue());
int threshLowUniformLocation = customShader.getUniformLocation(gl, "ThresholdLow");
gl.glUniform1f(threshLowUniformLocation, thresholdLow.getFloatValue());
}
// Draw teapot
gl.glMaterialfv(GL.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, new float[] {1, 1, 0, 1}, 0);
gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_SPECULAR, new float[] {1, 1, 1, 1}, 0);
gl.glMaterialf(GL.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 50);
glut.glutSolidTeapot(1);
// Draw table
gl.glMaterialfv(GL.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, new float[] {0, 1, 1, 1}, 0);
gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_SPECULAR, new float[] {1, 1, 1, 1}, 0);
gl.glMaterialf(GL.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 50);
gl.glPushMatrix();
gl.glTranslated(0, -0.8, 0);
gl.glBegin(GL2.GL_TRIANGLE_FAN);
gl.glNormal3d(0, 1, 0);
gl.glTexCoord2d(0, 0);
gl.glVertex3d(-10, 0, -10);
gl.glTexCoord2d(0, 1);
gl.glVertex3d(-10, 0, 10);
gl.glTexCoord2d(1, 1);
gl.glVertex3d(10, 0, 10);
gl.glTexCoord2d(1, 0);
gl.glVertex3d(10, 0, -10);
gl.glEnd();
gl.glPopMatrix();
}