Java Code Examples for com.jogamp.opengl.GL2GL3#glUseProgram()

public static void init(Renderer r, GL2GL3 gl) {
	int[] is = new int[1];
	gl.glGenBuffers(1, is, 0);
	_vertBuffer = is[0];

	Shader s = r.getShader(ShaderHandle.DEBUG);
	_progHandle = s.getProgramHandle();
	gl.glUseProgram(_progHandle);

	_modelViewMatVar = gl.glGetUniformLocation(_progHandle, "modelViewMat");
	_projMatVar = gl.glGetUniformLocation(_progHandle, "projMat");
	_colorVar = gl.glGetUniformLocation(_progHandle, "color");

	_cVar = gl.glGetUniformLocation(_progHandle, "C");
	_fcVar = gl.glGetUniformLocation(_progHandle, "FC");

	_posVar = gl.glGetAttribLocation(_progHandle, "position");

	_hasInitialized = true;
}
 

private static void initBSInfo(Renderer r, GL2GL3 gl) {
	BatchShaderInfo si = bsInfo;

	si.progHandle = r.getShader(ShaderHandle.MESH_BATCH).getProgramHandle();
	int ph = bsInfo.progHandle;

	gl.glUseProgram(ph);

	si.instSpaceMatVar = gl.glGetAttribLocation(ph, "instSpaceMat");
	si.instSpaceNorMatVar = gl.glGetAttribLocation(ph, "instSpaceNorMat");

	// Bind the shader variables
	si.modelViewMatVar = gl.glGetUniformLocation(ph, "modelViewMat");
	si.projMatVar = gl.glGetUniformLocation(ph, "projMat");
	si.normalMatVar = gl.glGetUniformLocation(ph, "normalMat");

	si.posVar = gl.glGetAttribLocation(ph, "position");
	si.norVar = gl.glGetAttribLocation(ph, "normal");
	si.texCoordVar = gl.glGetAttribLocation(ph, "texCoord");

	si.diffTexVar = gl.glGetUniformLocation(ph, "diffTexs");

	si.diffuseColorVar = gl.glGetAttribLocation(ph, "diffuseColorV");
	si.diffTexIndexVar = gl.glGetAttribLocation(ph, "diffTexIndexV");
	si.ambientColorVar = gl.glGetAttribLocation(ph, "ambientColorV");
	si.specColorVar = gl.glGetAttribLocation(ph, "specColorV");
	si.shininessVar = gl.glGetAttribLocation(ph, "shininessV");

	si.lightDirVar = gl.glGetUniformLocation(ph, "lightDir");
	si.lightIntVar = gl.glGetUniformLocation(ph, "lightIntensity");
	si.numLightsVar = gl.glGetUniformLocation(ph, "numLights");

	si.cVar = gl.glGetUniformLocation(ph, "C");
	si.fcVar = gl.glGetUniformLocation(ph, "FC");

}
 

private void initUniforms(Renderer renderer, Mat4d modelViewMat, Mat4d projMat, Mat4d viewMat, Mat4d normalMat) {
	GL2GL3 gl = renderer.getGL();

	lightsDirScratch[0].mult4(viewMat, lightsDir[0]);
	lightsDirScratch[1].mult4(viewMat, lightsDir[1]);

	lightsDirFloats[0] = (float)lightsDirScratch[0].x;
	lightsDirFloats[1] = (float)lightsDirScratch[0].y;
	lightsDirFloats[2] = (float)lightsDirScratch[0].z;

	lightsDirFloats[3] = (float)lightsDirScratch[1].x;
	lightsDirFloats[4] = (float)lightsDirScratch[1].y;
	lightsDirFloats[5] = (float)lightsDirScratch[1].z;

	for (int i = 0; i < usedShaders.length; ++i) {
		int shaderID = usedShaders[i];
		ShaderInfo si = sInfos[shaderID];

		gl.glUseProgram(si.meshProgHandle);

		gl.glUniformMatrix4fv(si.modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
		gl.glUniformMatrix4fv(si.projMatVar, 1, false, RenderUtils.MarshalMat4d(projMat), 0);
		gl.glUniformMatrix4fv(si.normalMatVar, 1, false, RenderUtils.MarshalMat4d(normalMat), 0);

		gl.glUniform3fv(si.lightDirVar, 2, lightsDirFloats, 0);
		gl.glUniform1fv(si.lightIntVar, 2, lightsInt, 0);
		gl.glUniform1i(si.numLightsVar, numLights);

		gl.glUniform1f(si.cVar, Camera.C);
		gl.glUniform1f(si.fcVar, Camera.FC);

	}
}
 

public void useShader(GL2GL3 gl) {
	if (_status != ShaderStatus.GOOD) {
		assert(false);
	}

	gl.glUseProgram(_progHandle);
}
 

public void render(int contextID, Renderer renderer, Camera cam) {

		if (textureURI == null) {
			return;
		}

		if (!isLoaded) {
			loadGPUAssets(renderer);
		}
		if (!VAOMap.containsKey(contextID)) {
			setupVAO(contextID, renderer);
		}

		GL2GL3 gl = renderer.getGL();

		int textureID = renderer.getTexCache().getTexID(gl, textureURI, false, false, false);
		if (textureID == TexCache.LOADING_TEX_ID) {
			// Sky box is not ready yet, get it next time
			return;
		}

		int vao = VAOMap.get(contextID);
		gl.glBindVertexArray(vao);

		gl.glUseProgram(progHandle);

		gl.glUniformMatrix4fv(projMatVar, 1, false, RenderUtils.MarshalMat4d(cam.getProjMat4d()), 0);

		Mat4d invViewMat = new Mat4d();
		invViewMat.setRot4(cam.getTransformRef().getRotRef());
		gl.glUniformMatrix4fv(invViewMatVar, 1, false, RenderUtils.MarshalMat4d(invViewMat), 0);

		gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, textureID);
		// Disable mipmaps for skyboxes as the discontinuity screws them up
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_MIN_FILTER, GL2GL3.GL_LINEAR );

		gl.glUniform1i(texVar, 0);

		gl.glDrawArrays(GL2GL3.GL_TRIANGLES, 0, 6);

		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_MIN_FILTER, GL2GL3.GL_LINEAR_MIPMAP_LINEAR );

		gl.glBindVertexArray(0);

	}
 

@Override
public void render(int contextID, Renderer renderer,
		double windowWidth, double windowHeight, Camera cam, Ray pickRay) {

	if (!staticInit) {
		initStaticBuffers(renderer);
	}

	double x = _x;
	double y = _y;
	if (_alignRight) {
		x = windowWidth - _x - _width;
	}
	if (!_alignBottom) {
		y = windowHeight - _y - _height;
	}

	GL2GL3 gl = renderer.getGL();

	int textureID = renderer.getTexCache().getTexID(gl, _imageURI, _isTransparent, _isCompressed, false);

	if (textureID == TexCache.LOADING_TEX_ID) {
		return; // This texture is not ready yet
	}

	if (!VAOMap.containsKey(contextID)) {
		setupVAO(contextID, renderer);
	}

	int vao = VAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(progHandle);

	gl.glUniform1i(hasTexVar, 1);

	gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
	gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, textureID);
	gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_CLAMP_TO_EDGE);
	gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_CLAMP_TO_EDGE);
	gl.glUniform1i(texVar, 0);

	if (_isTransparent) {
		gl.glEnable(GL2GL3.GL_BLEND);
		gl.glBlendEquationSeparate(GL2GL3.GL_FUNC_ADD, GL2GL3.GL_MAX);
		gl.glBlendFuncSeparate(GL2GL3.GL_SRC_ALPHA, GL2GL3.GL_ONE_MINUS_SRC_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ONE);
	}

	// Set the size and scale in normalized (-1, 1) coordinates
	double normX = x / (0.5 *  windowWidth) - 1;
	double normY = y / (0.5 * windowHeight) - 1;

	double normWidth  =  _width / (0.5 *  windowWidth);
	double normHeight = _height / (0.5 * windowHeight);

	gl.glUniform2f(offsetVar, (float)normX, (float)normY);
	gl.glUniform2f(sizeVar, (float)normWidth, (float)normHeight);

	// Draw
	gl.glDisable(GL2GL3.GL_CULL_FACE);
	gl.glDrawArrays(GL2GL3.GL_TRIANGLES, 0, 6);
	gl.glEnable(GL2GL3.GL_CULL_FACE);

	if (_isTransparent) {
		gl.glDisable(GL2GL3.GL_BLEND);
	}

}
 

/**
 * Initialize the GL assets needed, this should be called with the shared GL context
 * @param gl
 */
public static void init(Renderer r, GL2GL3 gl) {
	int[] is = new int[3];
	gl.glGenBuffers(3, is, 0);
	_aabbVertBuffer = is[0];
	_boxVertBuffer = is[1];
	_lineVertBuffer = is[2];

	Shader s = r.getShader(ShaderHandle.DEBUG);
	_debugProgHandle = s.getProgramHandle();
	gl.glUseProgram(_debugProgHandle);

	_modelViewMatVar = gl.glGetUniformLocation(_debugProgHandle, "modelViewMat");
	_projMatVar = gl.glGetUniformLocation(_debugProgHandle, "projMat");
	_colorVar = gl.glGetUniformLocation(_debugProgHandle, "color");

	_posVar = gl.glGetAttribLocation(_debugProgHandle, "position");

	_cVar = gl.glGetAttribLocation(_debugProgHandle, "C");
	_fcVar = gl.glGetAttribLocation(_debugProgHandle, "FC");

	// Build up a buffer of vertices for lines in a box
	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, _aabbVertBuffer);

	FloatBuffer fb = FloatBuffer.allocate(3 * 2 * 12); // 12 line segments
	// Top lines
	app( 1,  1,  1, fb);
	app( 1, -1,  1, fb);

	app( 1, -1,  1, fb);
	app(-1, -1,  1, fb);

	app(-1, -1,  1, fb);
	app(-1,  1,  1, fb);

	app(-1,  1,  1, fb);
	app( 1,  1,  1, fb);

	// Bottom lines
	app( 1,  1, -1, fb);
	app( 1, -1, -1, fb);

	app( 1, -1, -1, fb);
	app(-1, -1, -1, fb);

	app(-1, -1, -1, fb);
	app(-1,  1, -1, fb);

	app(-1,  1, -1, fb);
	app( 1,  1, -1, fb);

	// Side lines
	app( 1,  1,  1, fb);
	app( 1,  1, -1, fb);

	app(-1,  1,  1, fb);
	app(-1,  1, -1, fb);

	app( 1, -1,  1, fb);
	app( 1, -1, -1, fb);

	app(-1, -1,  1, fb);
	app(-1, -1, -1, fb);

	fb.flip();

	gl.glBufferData(GL2GL3.GL_ARRAY_BUFFER, 3 * 2 * 12 * 4, fb, GL2GL3.GL_STATIC_DRAW);
	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, 0);

	// Create a buffer for drawing rectangles
	// Build up a buffer of vertices for lines in a box
	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, _boxVertBuffer);

	fb = FloatBuffer.allocate(3 * 2 * 4); // 4 line segments

	// lines
	app( 0.5f,  0.5f,  0, fb);
	app( 0.5f, -0.5f,  0, fb);

	app( 0.5f, -0.5f,  0, fb);
	app(-0.5f, -0.5f,  0, fb);

	app(-0.5f, -0.5f,  0, fb);
	app(-0.5f,  0.5f,  0, fb);

	app(-0.5f,  0.5f,  0, fb);
	app( 0.5f,  0.5f,  0, fb);

	fb.flip();

	gl.glBufferData(GL2GL3.GL_ARRAY_BUFFER, 3 * 2 * 4 * 4, fb, GL2GL3.GL_STATIC_DRAW);
	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, 0);

}
 

@SuppressWarnings("unused")
private void renderBatch(int contextID, Renderer renderer,
        MeshBatch batch) {

	// TODO bounds
	// TODO size culling


	Material mat = _materials.get(batch.matIndex);
	SubMesh subMesh = _subMeshes.get(batch.meshIndex);

	int shaderID = mat.shaderID | Renderer.STATIC_BATCH_FLAG;

	GL2GL3 gl = renderer.getGL();
	GL4 gl4 = renderer.getGL4();

	if (!batch.vaoMaps[shaderID].containsKey(contextID)) {
		setupVAOForBatch(contextID, batch, renderer);
	}

	int vao = batch.vaoMaps[shaderID].get(contextID);
	gl.glBindVertexArray(vao);

	ShaderInfo si = sInfos[shaderID];

	gl.glUseProgram(si.meshProgHandle);

	// Setup uniforms for this object\
	if (mat._textureIndex != -1) {
		int texHandle = _textureHandles.get(mat._textureIndex);
		gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, texHandle);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_REPEAT);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_REPEAT);
		gl.glUniform1i(si.texVar, 0);
	} else {
		gl.glUniform4fv(si.diffuseColorVar, 1, mat._diffuseColor.toFloats(), 0);
	}

	gl.glUniform3fv(si.ambientColorVar, 1, mat._ambientColor.toFloats(), 0);
	gl.glUniform3fv(si.specColorVar, 1, mat._specColor.toFloats(), 0);
	gl.glUniform1f(si.shininessVar, (float)mat._shininess);

	// Actually draw it
	gl.glDisable(GL2GL3.GL_CULL_FACE);

	//gl.glDrawElements(GL2GL3.GL_TRIANGLES, subMesh._numVerts, GL2GL3.GL_UNSIGNED_INT, 0);
	gl4.glDrawElementsInstanced(GL2GL3.GL_TRIANGLES, subMesh._numVerts, GL2GL3.GL_UNSIGNED_INT, 0, batch.numInstances);

	gl.glEnable(GL2GL3.GL_CULL_FACE);

	gl.glBindVertexArray(0);

}
 

private void setupVAOForSubMeshImp(int contextID, int shaderID, SubMesh sub, Renderer renderer) {
	GL2GL3 gl = renderer.getGL();

	int vao = renderer.generateVAO(contextID, gl);
	sub.vaoMaps[shaderID].put(contextID, vao);
	gl.glBindVertexArray(vao);

	int progHandle = sInfos[shaderID].meshProgHandle;
	gl.glUseProgram(progHandle);

	int texCoordVar = gl.glGetAttribLocation(progHandle, "texCoord");

	// For some shaders the texCoordVar may be optimized away
	if (texCoordVar != -1) {
		if (sub._texCoordBuffer != 0) {
			// Texture coordinates
			gl.glEnableVertexAttribArray(texCoordVar);

			gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, sub._texCoordBuffer);
			gl.glVertexAttribPointer(texCoordVar, 2, GL2GL3.GL_FLOAT, false, 0, 0);
		} else {
			gl.glVertexAttrib2f(texCoordVar, 0, 0);
		}
	}

	int posVar = gl.glGetAttribLocation(progHandle, "position");
	gl.glEnableVertexAttribArray(posVar);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, sub._vertexBuffer);
	gl.glVertexAttribPointer(posVar, 3, GL2GL3.GL_FLOAT, false, 0, 0);

	// Normals
	int normalVar = gl.glGetAttribLocation(progHandle, "normal");
	gl.glEnableVertexAttribArray(normalVar);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, sub._normalBuffer);
	gl.glVertexAttribPointer(normalVar, 3, GL2GL3.GL_FLOAT, false, 0, 0);

	if (!flattenBuffers) {
		gl.glBindBuffer(GL2GL3.GL_ELEMENT_ARRAY_BUFFER, sub._indexBuffer);
	}

	gl.glBindVertexArray(0);

}
 

private void renderSubMesh(SubMesh subMesh, int materialIndex,
                           Mat4d subInstTrans,
                           Mat4d subInstInvTrans,
                           int contextID,
                           Renderer renderer) {

	Material mat = _materials.get(materialIndex);
	int shaderID = mat.shaderID;

	GL2GL3 gl = renderer.getGL();

	if (!subMesh.vaoMaps[shaderID].containsKey(contextID)) {
		setupVAOForSubMesh(contextID, subMesh, renderer);
	}

	int vao = subMesh.vaoMaps[shaderID].get(contextID);
	gl.glBindVertexArray(vao);

	ShaderInfo si = sInfos[shaderID];

	gl.glUseProgram(si.meshProgHandle);

	// Setup uniforms for this object
	Mat4d subInstNorm = new Mat4d(subInstInvTrans);
	subInstNorm.transpose4();

	gl.glUniformMatrix4fv(si.bindSpaceMatVar, 1, false, RenderUtils.MarshalMat4d(subInstTrans), 0);
	gl.glUniformMatrix4fv(si.bindSpaceNorMatVar, 1, false, RenderUtils.MarshalMat4d(subInstNorm), 0);

	if (mat._textureIndex != -1) {
		int texHandle = _textureHandles.get(mat._textureIndex);
		gl.glActiveTexture(GL2GL3.GL_TEXTURE0);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, texHandle);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_REPEAT);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_REPEAT);
		gl.glUniform1i(si.texVar, 0);
	} else {
		gl.glUniform4fv(si.diffuseColorVar, 1, mat._diffuseColor.toFloats(), 0);
	}

	gl.glUniform3fv(si.ambientColorVar, 1, mat._ambientColor.toFloats(), 0);
	gl.glUniform3fv(si.specColorVar, 1, mat._specColor.toFloats(), 0);
	gl.glUniform1f(si.shininessVar, (float)mat._shininess);

	if (mat._transType != MeshData.NO_TRANS) {
		gl.glBlendEquationSeparate(GL2GL3.GL_FUNC_ADD, GL2GL3.GL_MAX);

		if (mat._transType != MeshData.DIFF_ALPHA_TRANS) {
			gl.glBlendColor((float)mat._transColour.r,
			                (float)mat._transColour.g,
			                (float)mat._transColour.b,
			                (float)mat._transColour.a);
		}

		if (mat._transType == MeshData.A_ONE_TRANS) {
			gl.glBlendFuncSeparate(GL2GL3.GL_CONSTANT_ALPHA, GL2GL3.GL_ONE_MINUS_CONSTANT_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ZERO);
		} else if (mat._transType == MeshData.RGB_ZERO_TRANS) {
			gl.glBlendFuncSeparate(GL2GL3.GL_ONE_MINUS_CONSTANT_COLOR, GL2GL3.GL_CONSTANT_COLOR, GL2GL3.GL_ONE, GL2GL3.GL_ZERO);
		} else if (mat._transType == MeshData.DIFF_ALPHA_TRANS) {
			gl.glBlendFuncSeparate(GL2GL3.GL_SRC_ALPHA, GL2GL3.GL_ONE_MINUS_SRC_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ZERO);
		} else {
			assert(false); // Unknown transparency type
		}
	}

	// Actually draw it
	//gl.glPolygonMode(GL2GL3.GL_FRONT_AND_BACK, GL2GL3.GL_LINE);
	gl.glDisable(GL2GL3.GL_CULL_FACE);

	if (flattenBuffers) {
		gl.glDrawArrays(GL2GL3.GL_TRIANGLES, 0, subMesh._numVerts);
	} else {
		gl.glDrawElements(GL2GL3.GL_TRIANGLES, subMesh._numVerts, GL2GL3.GL_UNSIGNED_INT, 0);
	}
	gl.glEnable(GL2GL3.GL_CULL_FACE);

	// Reset the blend state
	if (mat._transType != MeshData.NO_TRANS) {
		gl.glBlendEquationSeparate(GL2GL3.GL_FUNC_ADD, GL2GL3.GL_MAX);
		gl.glBlendFuncSeparate(GL2GL3.GL_SRC_ALPHA, GL2GL3.GL_ONE_MINUS_SRC_ALPHA, GL2GL3.GL_ONE, GL2GL3.GL_ONE);
	}

	gl.glBindVertexArray(0);

}
 

private void setupVAOForSubLine(int contextID, SubLine sub, Renderer renderer) {
	GL2GL3 gl = renderer.getGL();

	int vao = renderer.generateVAO(contextID, gl);
	sub.vaoMap.put(contextID, vao);
	gl.glBindVertexArray(vao);

	int prog = sub._progHandle;
	gl.glUseProgram(prog);

	int posVar = gl.glGetAttribLocation(prog, "position");
	gl.glEnableVertexAttribArray(posVar);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, sub._vertexBuffer);
	gl.glVertexAttribPointer(posVar, 3, GL2GL3.GL_FLOAT, false, 0, 0);

	gl.glBindVertexArray(0);

}
 

private void initBatchUniforms(Renderer renderer, Mat4d modelViewMat, Mat4d projMat, Mat4d viewMat, Mat4d normalMat) {
	GL2GL3 gl = renderer.getGL();

	lightsDirScratch[0].mult4(viewMat, lightsDir[0]);
	lightsDirScratch[1].mult4(viewMat, lightsDir[1]);

	lightsDirFloats[0] = (float)lightsDirScratch[0].x;
	lightsDirFloats[1] = (float)lightsDirScratch[0].y;
	lightsDirFloats[2] = (float)lightsDirScratch[0].z;

	lightsDirFloats[3] = (float)lightsDirScratch[1].x;
	lightsDirFloats[4] = (float)lightsDirScratch[1].y;
	lightsDirFloats[5] = (float)lightsDirScratch[1].z;

	BatchShaderInfo si = bsInfo;

	gl.glUseProgram(si.progHandle);

	gl.glUniformMatrix4fv(si.modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
	gl.glUniformMatrix4fv(si.projMatVar, 1, false, RenderUtils.MarshalMat4d(projMat), 0);
	gl.glUniformMatrix4fv(si.normalMatVar, 1, false, RenderUtils.MarshalMat4d(normalMat), 0);

	gl.glUniform3fv(si.lightDirVar, 2, lightsDirFloats, 0);
	gl.glUniform1fv(si.lightIntVar, 2, lightsInt, 0);
	gl.glUniform1i(si.numLightsVar, numLights);

	gl.glUniform1f(si.cVar, Camera.C);
	gl.glUniform1f(si.fcVar, Camera.FC);

	int[] sampIDs = new int[_textureHandles.size()];
	for (int i = 0; i < sampIDs.length; ++i) {
		sampIDs[i] = i;
	}
	if (sampIDs.length > 0) {
		gl.glUniform1iv(si.diffTexVar, sampIDs.length, sampIDs, 0);
	}

	for (int i = 0; i < _textureHandles.size(); ++i) {
		gl.glActiveTexture(GL2GL3.GL_TEXTURE0+i);
		gl.glBindTexture(GL2GL3.GL_TEXTURE_2D, _textureHandles.get(i));
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_S, GL2GL3.GL_REPEAT);
		gl.glTexParameteri(GL2GL3.GL_TEXTURE_2D, GL2GL3.GL_TEXTURE_WRAP_T, GL2GL3.GL_REPEAT);
	}
}
 

private void setupVAOForStaticLines(int contextID, Renderer renderer) {
	GL2GL3 gl = renderer.getGL();

	int vao = renderer.generateVAO(contextID, gl);
	_lineVAOs.put(contextID, vao);
	gl.glBindVertexArray(vao);

	Shader s= renderer.getShader(ShaderHandle.DEBUG_BATCH);
	assert(s.isGood());
	int prog = s.getProgramHandle();
	gl.glUseProgram(prog);

	int posVar = gl.glGetAttribLocation(prog, "position");
	gl.glEnableVertexAttribArray(posVar);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, linePosBuffer);
	gl.glVertexAttribPointer(posVar, 3, GL2GL3.GL_FLOAT, false, 0, 0);

	int colVar = gl.glGetAttribLocation(prog, "vertColor");
	gl.glEnableVertexAttribArray(colVar);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, lineInstColorBuffer);
	gl.glVertexAttribPointer(colVar, 4, GL2GL3. GL_UNSIGNED_BYTE, true, 0, 0);
	gl.glVertexAttribDivisor(colVar, 1);

	int instMatVar = gl.glGetAttribLocation(prog, "instMat");
	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, lineTransBuffer);

	for (int i = 0; i < 4; ++i) {
		// Enable 4 variables because this is a matrix
		int varInd = instMatVar + i;

		gl.glEnableVertexAttribArray(varInd);

		gl.glVertexAttribPointer(varInd, 4, GL2GL3.GL_FLOAT, false, 16*4, i*4*4);
		gl.glVertexAttribDivisor(varInd, 1); // Per instance
	}

	gl.glBindVertexArray(0);

}
 

public static void renderAABB(int contextID, Renderer renderer,
                              AABB aabb, Color4d color, Camera cam) {

	if (aabb.isEmpty()) {
		return;
	}

	GL2GL3 gl = renderer.getGL();

	if (!_debugVAOMap.containsKey(contextID)) {
		setupDebugVAO(contextID, renderer);
	}

	int vao = _debugVAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(_debugProgHandle);

	// Setup uniforms for this object
	Mat4d projMat = cam.getProjMat4d();
	Mat4d modelViewMat = new Mat4d();
	cam.getViewMat4d(modelViewMat);

	Mat4d aabbCenterMat = new Mat4d();
	aabbCenterMat.setTranslate3(aabb.center);
	modelViewMat.mult4(aabbCenterMat);
	modelViewMat.scaleCols3(aabb.radius);

	gl.glUniformMatrix4fv(_modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
	gl.glUniformMatrix4fv(_projMatVar, 1, false, RenderUtils.MarshalMat4d(projMat), 0);

	gl.glUniform4fv(_colorVar, 1, color.toFloats(), 0);

	gl.glUniform1f(_cVar, Camera.C);
	gl.glUniform1f(_fcVar, Camera.FC);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, _aabbVertBuffer);
	gl.glVertexAttribPointer(_posVar, 3, GL2GL3.GL_FLOAT, false, 0, 0);

	gl.glDrawArrays(GL2GL3.GL_LINES, 0, 12 * 2);

	gl.glBindVertexArray(0);

}
 

public static void init(Renderer r, GL2GL3 gl) {
	for (int i = 0; i < Renderer.NUM_MESH_SHADERS; ++i) {
		ShaderInfo si = new ShaderInfo();
		sInfos[i] = si;

		si.meshProgHandle = r.getMeshShader(i).getProgramHandle();

		gl.glUseProgram(si.meshProgHandle);

		// Bind the shader variables
		si.modelViewMatVar = gl.glGetUniformLocation(si.meshProgHandle, "modelViewMat");
		si.projMatVar = gl.glGetUniformLocation(si.meshProgHandle, "projMat");
		si.normalMatVar = gl.glGetUniformLocation(si.meshProgHandle, "normalMat");
		si.diffuseColorVar = gl.glGetUniformLocation(si.meshProgHandle, "diffuseColor");
		si.ambientColorVar = gl.glGetUniformLocation(si.meshProgHandle, "ambientColor");
		si.specColorVar = gl.glGetUniformLocation(si.meshProgHandle, "specColor");
		si.shininessVar = gl.glGetUniformLocation(si.meshProgHandle, "shininess");
		si.texVar = gl.glGetUniformLocation(si.meshProgHandle, "diffuseTex");

		si.lightDirVar = gl.glGetUniformLocation(si.meshProgHandle, "lightDir");
		si.lightIntVar = gl.glGetUniformLocation(si.meshProgHandle, "lightIntensity");
		si.numLightsVar = gl.glGetUniformLocation(si.meshProgHandle, "numLights");

		si.cVar = gl.glGetUniformLocation(si.meshProgHandle, "C");
		si.fcVar = gl.glGetUniformLocation(si.meshProgHandle, "FC");

		if ((i & Renderer.STATIC_BATCH_FLAG) == 0) {
			// We do not use the uniform bind space variables when batch rendering
			si.bindSpaceMatVar = gl.glGetUniformLocation(si.meshProgHandle, "bindSpaceMat");
			si.bindSpaceNorMatVar = gl.glGetUniformLocation(si.meshProgHandle, "bindSpaceNorMat");
		}

	}

	numLights = 2;


	lightsDir[0] = new Vec4d(-0.3, -0.2, -0.5, 0.0);
	lightsDir[1] = new Vec4d( 0.5, 1.0, -0.1, 0.0);

	lightsDir[0].normalize3();
	lightsDir[1].normalize3();

	lightsInt[0] = 1f;
	lightsInt[1] = 0.5f;

	lightsDirScratch[0] = new Vec4d();
	lightsDirScratch[1] = new Vec4d();

	if (r.isIndirectSupported()) {
		initBSInfo(r, gl);
	}
}
 

public static void renderBox(int contextID, Renderer renderer,
           Transform modelTrans, Vec4d scale, Color4d color, Camera cam) {

	GL2GL3 gl = renderer.getGL();

	if (!_debugVAOMap.containsKey(contextID)) {
		setupDebugVAO(contextID, renderer);
	}

	int vao = _debugVAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(_debugProgHandle);

	gl.glUniform1f(_cVar, Camera.C);
	gl.glUniform1f(_fcVar, Camera.FC);

	// Setup uniforms for this object
	Mat4d projMat = cam.getProjMat4d();
	Mat4d modelViewMat = new Mat4d();
	cam.getViewMat4d(modelViewMat);

	modelViewMat.mult4(modelTrans.getMat4dRef());
	modelViewMat.scaleCols3(scale);

	gl.glUniformMatrix4fv(_modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
	gl.glUniformMatrix4fv(_projMatVar, 1, false, RenderUtils.MarshalMat4d(projMat), 0);

	gl.glUniform4fv(_colorVar, 1, color.toFloats(), 0);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, _boxVertBuffer);
	gl.glVertexAttribPointer(_posVar, 3, GL2GL3.GL_FLOAT, false, 0, 0);

	gl.glDrawArrays(GL2GL3.GL_LINES, 0, 4 * 2);

	gl.glBindVertexArray(0);
}
 

private static void setupVAO(int contextID, Renderer renderer) {
	GL2GL3 gl = renderer.getGL();

	int vao = renderer.generateVAO(contextID, gl);

	_VAOMap.put(contextID, vao);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(_progHandle);

	gl.glEnableVertexAttribArray(_posVar);

	gl.glBindVertexArray(0);

}
 

@Override
public void render(int contextID, Renderer renderer,
	double windowWidth, double windowHeight, Camera cam, Ray pickRay) {

	if (!staticInit) {
		initStaticData(renderer);
	}

	GL2GL3 gl = renderer.getGL();

	if (!VAOMap.containsKey(contextID)) {
		setupVAO(contextID, renderer);
	}

	int vao = VAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(progHandle);

	gl.glUniform4fv(colorVar, 1, color.toFloats(), 0);

	gl.glUniform1i(hasTexVar, 0);


	// Set the size and offset in normalized (-1, 1) coordinates
	double scaleX = 2.0 / windowWidth;
	double scaleY = 2.0 / windowHeight;

	double pixelWidth = 2.0/windowWidth;
	double pixelHeight = 2.0/windowHeight;

	double xOffset = -1.0 + 0.5*pixelWidth;
	double yOffset = -1.0 + 0.5*pixelHeight;

	if (originTop) {
		scaleY *= -1.0;
		yOffset = 1.0 - 0.5*pixelHeight;
	}

	if (originRight) {
		scaleX *= -1.0;
		xOffset = 1.0 - 0.5*pixelWidth;
	}

	gl.glUniform2f(offsetVar, (float)xOffset, (float)yOffset);
	gl.glUniform2f(sizeVar, (float)scaleX, (float)scaleY);

	gl.glEnableVertexAttribArray(posVar);

	gl.glDisable(GL2GL3.GL_CULL_FACE);

	// Build up a float buffer to pass to GL

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, glBuff);
	gl.glBufferData(GL2GL3.GL_ARRAY_BUFFER, pointsBuffer.limit() * 4, pointsBuffer, GL2GL3.GL_STATIC_DRAW);

	gl.glVertexAttribPointer(posVar, 2, GL2GL3.GL_FLOAT, false, 0, 0);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, 0);

	gl.glDrawArrays(GL2GL3.GL_TRIANGLE_FAN, 0, pointsBuffer.limit() / 2);

	gl.glEnable(GL2GL3.GL_CULL_FACE);

	gl.glBindVertexArray(0);
}
 

public void render(int contextID, Renderer renderer,
           Mat4d modelViewMat,
           Camera cam) {

	GL2GL3 gl = renderer.getGL();

	Shader s = renderer.getShader(Renderer.ShaderHandle.HULL);

	int progHandle = s.getProgramHandle();
	gl.glUseProgram(progHandle);

	int modelViewMatVar = gl.glGetUniformLocation(progHandle, "modelViewMat");
	int projMatVar = gl.glGetUniformLocation(progHandle, "projMat");

	int cVar = gl.glGetUniformLocation(progHandle, "C");
	int fcVar = gl.glGetUniformLocation(progHandle, "FC");

	int[] is = new int[2];
	gl.glGenBuffers(2, is, 0);
	int vertexBuffer = is[0];
	int indexBuffer = is[1];

	List<Vec3d> verts = _hull.getVertices();
	// Generate the vertex buffer
	FloatBuffer fb = FloatBuffer.allocate(verts.size() * 3); //
	for (Vec3d v : verts) {
		RenderUtils.putPointXYZ(fb, v);
	}
	fb.flip();

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, vertexBuffer);
	gl.glBufferData(GL2GL3.GL_ARRAY_BUFFER, verts.size() * 3 * 4, fb, GL2GL3.GL_STATIC_DRAW);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, 0);

	// Generate the index buffer
	List<ConvexHull.HullFace> faces = _hull.getFaces();

	int numIndices = faces.size() * 3;

	IntBuffer ib = IntBuffer.allocate(faces.size() * 3); //
	for (ConvexHull.HullFace f : faces) {
		ib.put(f.indices, 0 ,3);
	}

	ib.flip();

	gl.glBindBuffer(GL2GL3.GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
	gl.glBufferData(GL2GL3.GL_ELEMENT_ARRAY_BUFFER, faces.size() * 3 * 4, ib, GL2GL3.GL_STATIC_DRAW);

	gl.glBindBuffer(GL2GL3.GL_ELEMENT_ARRAY_BUFFER, 0);

	if (!_vaoMap.containsKey(contextID)) {
		setupVAO(contextID, renderer, progHandle, vertexBuffer, indexBuffer);
	}

	int vao = _vaoMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(progHandle);

	// Setup uniforms for this object
	Mat4d projMat = cam.getProjMat4d();

	gl.glUniformMatrix4fv(modelViewMatVar, 1, false, RenderUtils.MarshalMat4d(modelViewMat), 0);
	gl.glUniformMatrix4fv(projMatVar, 1, false, RenderUtils.MarshalMat4d(projMat), 0);

	gl.glUniform1f(cVar, Camera.C);
	gl.glUniform1f(fcVar, Camera.FC);

	// Actually draw it

	gl.glEnable(GL2GL3.GL_BLEND);
	gl.glEnable(GL2GL3.GL_CULL_FACE);
	gl.glCullFace(GL2GL3.GL_BACK);

	gl.glBlendFunc(GL2GL3.GL_ONE, GL2GL3.GL_ONE_MINUS_SRC_ALPHA);
	gl.glBlendEquation(GL2GL3.GL_FUNC_ADD);

	gl.glDisable(GL2GL3.GL_DEPTH_TEST);

	//gl.glPolygonMode(GL2GL3.GL_FRONT_AND_BACK, GL2GL3.GL_LINE);

	gl.glDrawElements(GL2GL3.GL_TRIANGLES, numIndices, GL2GL3.GL_UNSIGNED_INT, 0);

	//gl.glPolygonMode(GL2GL3.GL_FRONT_AND_BACK, GL2GL3.GL_FILL);

	gl.glEnable(GL2GL3.GL_DEPTH_TEST);

	gl.glDisable(GL2GL3.GL_CULL_FACE);
	gl.glCullFace(GL2GL3.GL_BACK);

	gl.glDisable(GL2GL3.GL_BLEND);

	gl.glBindVertexArray(0);

	gl.glDeleteBuffers(2, is, 0);

}
 

@Override
public void render(int contextID, Renderer renderer,
	double windowWidth, double windowHeight, Camera cam, Ray pickRay) {

	if (!staticInit) {
		initStaticData(renderer);
	}

	GL2GL3 gl = renderer.getGL();

	if (!VAOMap.containsKey(contextID)) {
		setupVAO(contextID, renderer);
	}

	int vao = VAOMap.get(contextID);
	gl.glBindVertexArray(vao);

	gl.glUseProgram(progHandle);

	gl.glUniform4fv(colorVar, 1, color.toFloats(), 0);

	gl.glUniform1i(hasTexVar, 0);


	// Set the size and offset in normalized (-1, 1) coordinates
	double scaleX = 2.0 / windowWidth;
	double scaleY = 2.0 / windowHeight;

	double pixelWidth = 2.0/windowWidth;
	double pixelHeight = 2.0/windowHeight;

	double xOffset = -1.0 + 0.5*pixelWidth;
	double yOffset = -1.0 + 0.5*pixelHeight;

	if (originTop) {
		scaleY *= -1.0;
		yOffset = 1.0 - 0.5*pixelHeight;
	}

	if (originRight) {
		scaleX *= -1.0;
		xOffset = 1.0 - 0.5*pixelWidth;
	}

	gl.glUniform2f(offsetVar, (float)xOffset, (float)yOffset);
	gl.glUniform2f(sizeVar, (float)scaleX, (float)scaleY);

	gl.glEnableVertexAttribArray(posVar);

	gl.glDisable(GL2GL3.GL_CULL_FACE);

	if (!gl.isGLcore())
		gl.glLineWidth((float)lineWidth);
	else
		gl.glLineWidth(1.0f);

	// Build up a float buffer to pass to GL

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, lineGLBuff);
	gl.glBufferData(GL2GL3.GL_ARRAY_BUFFER, lineBuffer.limit() * 4, lineBuffer, GL2GL3.GL_STATIC_DRAW);

	gl.glVertexAttribPointer(posVar, 2, GL2GL3.GL_FLOAT, false, 0, 0);

	gl.glBindBuffer(GL2GL3.GL_ARRAY_BUFFER, 0);

	gl.glDrawArrays(GL2GL3.GL_LINES, 0, lineBuffer.limit() / 2);

	gl.glLineWidth(1.0f);

	gl.glEnable(GL2GL3.GL_CULL_FACE);

	gl.glBindVertexArray(0);
}