@Override
public void display(GLAutoDrawable drawable) {
// System.out.println("display");
GL3 gl3 = drawable.getGL().getGL3();
/**
* We set the clear color and depth (although depth is not necessary since it is 1 by default).
*/
gl3.glClearColor(0f, .33f, 0.66f, 1f);
gl3.glClearDepthf(1f);
gl3.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
{
// update matrix based on time
now = System.currentTimeMillis();
float diff = (float) (now - start) / 1000;
/**
* Here we build the matrix that will multiply our original vertex positions. We scale,
* halving it, and rotate it.
*/
scale = FloatUtil.makeScale(scale, true, 0.5f, 0.5f, 0.5f);
zRotazion = FloatUtil.makeRotationEuler(zRotazion, 0, 0, 0, diff);
modelToClip = FloatUtil.multMatrix(scale, zRotazion);
}
gl3.glUseProgram(programName);
gl3.glBindVertexArray(vertexArrayName.get(0));
gl3.glUniformMatrix4fv(modelToClipMatrixUL, 1, false, modelToClip, 0);
gl3.glDrawElements(GL_TRIANGLES, elementSize, GL_UNSIGNED_SHORT, 0);
/**
* The following line binds VAO and program to the default values, this is not a cheaper
* binding, it costs always as a binding. Every binding means additional validation and
* overhead, this may affect your performances. So you should avoid these calls, but remember
* that OpenGL is a state machine, so what you left bound remains bound!
*/
// gl3.glBindVertexArray(0);
// gl3.glUseProgram(0);
/**
* Check always any GL error, but keep in mind this is an implicit synchronization between CPU
* and GPU, so you should use it only for debug purposes.
*/
checkError(gl3, "display");
}
@Override
protected boolean render(GL gl) {
GL4 gl4 = (GL4) gl;
FloatUtil.makePerspective(
projection,
0,
true,
(float) Math.PI * 0.25f,
(float) windowSize.x / windowSize.y,
0.1f,
100.0f);
view = view();
FloatUtil.makeIdentity(model);
FloatUtil.multMatrix(projection, view);
FloatUtil.multMatrix(projection, model);
for (int i = 0; i < projection.length; i++) {
mvp[i] = projection[i];
}
gl4.glProgramUniformMatrix4dv(
programName[Program.VERT.ordinal()], uniformMvp, 1, false, mvp, 0);
gl4.glProgramUniform4dv(
programName[Program.FRAG.ordinal()],
uniformDiffuse,
1,
new double[] {1.0f, 0.5f, 0.0f, 1.0f},
0);
gl4.glViewportIndexedfv(0, new float[] {0, 0, windowSize.x, windowSize.y}, 0);
gl4.glClearBufferfv(GL_COLOR, 0, new float[] {0.0f, 0.0f, 0.0f, 0.0f}, 0);
gl4.glBindProgramPipeline(pipelineName[0]);
gl4.glBindVertexArray(vertexArrayName[0]);
gl4.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferName[Buffer.ELEMENT.ordinal()]);
gl4.glDrawElementsInstancedBaseVertex(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 1, 0);
return true;
}
public void makePmvMatrix() {
FloatUtil.multMatrixf(pmvMatrix.glGetPMatrixf(), pmvMatrix.glGetMvMatrixf(), mvp, 0);
getMatrix4f(pmvMatrix.glGetPMatrixf())
.mul(getMatrix4f(pmvMatrix.glGetMvMatrixf()))
.writeToBuffer(pmv, true, false);
}
/**
* Send uniform matrices "ProjectionMatrix, ModelViewMatrix and ModelViewProjectionMatrix" to
* vertex shader
*
* @param pmvMatrix the PMVMatrix containing all matrices
*/
public void setPMVMatrix(PMVMatrix pmvMatrix) {
FloatBuffer pmvMat = FloatBuffer.allocate(16);
FloatUtil.multMatrixf(pmvMatrix.glGetPMatrixf(), pmvMatrix.glGetMvMatrixf(), pmvMat);
gl.glUniformMatrix4fv(this.getModelViewProjectionMatrixID(), 1, false, pmvMat);
}