Java Code Examples for org.lwjgl.opengl.EXTFramebufferObject#glFramebufferRenderbufferEXT()

/**
 * Sets up the FBO with depth and stencil
 *
 * @param fbo Framebuffer
 */
private static void setupFBO(final Framebuffer fbo) {
    // Deletes old render buffer extensions such as depth
    // Args: Render Buffer ID
    EXTFramebufferObject.glDeleteRenderbuffersEXT(fbo.depthBuffer);
    // Generates a new render buffer ID for the depth and stencil extension
    final int stencil_depth_buffer_ID = EXTFramebufferObject.glGenRenderbuffersEXT();
    // Binds new render buffer by ID
    // Args: Target (GL_RENDERBUFFER_EXT), ID
    EXTFramebufferObject.glBindRenderbufferEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, stencil_depth_buffer_ID);
    // Adds the depth and stencil extension
    // Args: Target (GL_RENDERBUFFER_EXT), Extension (GL_DEPTH_STENCIL_EXT),
    // Width, Height
    EXTFramebufferObject.glRenderbufferStorageEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, EXTPackedDepthStencil.GL_DEPTH_STENCIL_EXT, Minecraft.getMinecraft().displayWidth, Minecraft.getMinecraft().displayHeight);
    // Adds the stencil attachment
    // Args: Target (GL_FRAMEBUFFER_EXT), Attachment
    // (GL_STENCIL_ATTACHMENT_EXT), Target (GL_RENDERBUFFER_EXT), ID
    EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_STENCIL_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT, stencil_depth_buffer_ID);
    // Adds the depth attachment
    // Args: Target (GL_FRAMEBUFFER_EXT), Attachment
    // (GL_DEPTH_ATTACHMENT_EXT), Target (GL_RENDERBUFFER_EXT), ID
    EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_DEPTH_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT, stencil_depth_buffer_ID);
}
 

/**
 * Creates a Rendertarget with a Texture that it renders the color buffer in
 * and a renderbuffer that it renders the depth to.
 * @param width the width
 * @param height the height
 * @return the newly created Rendertarget instance
*/
public static Rendertarget createRTTFramebuffer(int width, int height) {
	int old_framebuffer = GL11.glGetInteger(EXTFramebufferObject.GL_FRAMEBUFFER_BINDING_EXT);
	int old_texture = GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);
	Rendertarget buffer = new Rendertarget(width,height);
	buffer.bind();

	int fboTexture = buffer.textureID;
	GL11.glBindTexture(GL11.GL_TEXTURE_2D, fboTexture);
	GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, 4, width, height, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_INT, (ByteBuffer) null);
	GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
	GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);

	EXTFramebufferObject.glBindRenderbufferEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, buffer.depthBufferID);
	EXTFramebufferObject.glRenderbufferStorageEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, GL11.GL_DEPTH_COMPONENT, width, height);
	EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_DEPTH_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT, buffer.depthBufferID);

	EXTFramebufferObject.glFramebufferTexture2DEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT, GL11.GL_TEXTURE_2D, fboTexture, 0);

	GL11.glBindTexture(GL11.GL_TEXTURE_2D, old_texture);
	EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, old_framebuffer);

	return buffer;
}
 

private void allocateFrameBuffer() {
	if (this.framebuffer != 0) return;

	this.framebuffer = EXTFramebufferObject.glGenFramebuffersEXT(); //Release via: EXTFramebufferObject.glDeleteFramebuffersEXT(framebuffer);
	this.depthBuffer = EXTFramebufferObject.glGenRenderbuffersEXT(); //Release via: EXTFramebufferObject.glDeleteRenderbuffersEXT(depthBuffer);

	EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, this.framebuffer);

	EXTFramebufferObject.glBindRenderbufferEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, depthBuffer);
	if (MinecraftForgeClient.getStencilBits() == 0) EXTFramebufferObject.glRenderbufferStorageEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, GL14.GL_DEPTH_COMPONENT24, width, height);
	else EXTFramebufferObject.glRenderbufferStorageEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, org.lwjgl.opengl.EXTPackedDepthStencil.GL_DEPTH24_STENCIL8_EXT, width, height);

	EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_DEPTH_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT, depthBuffer);
	if (MinecraftForgeClient.getStencilBits() != 0) EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_STENCIL_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT, depthBuffer);

	this.texture = GL11.glGenTextures(); //Release via: GL11.glDeleteTextures(colorTexture);
	GL11.glBindTexture(GL11.GL_TEXTURE_2D, this.texture);
	GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
	GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA8, width, height, 0, GL11.GL_RGBA, GL11.GL_INT, (java.nio.ByteBuffer) null);
	EXTFramebufferObject.glFramebufferTexture2DEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT, GL11.GL_TEXTURE_2D, this.texture, 0);

	EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, 0);
}
 

/**
 * Creates a Rendertarget with a Texture that it renders the color buffer in
 * and a renderbuffer that it renders the depth to.
 * @param width the width
 * @param height the height
 * @return the newly created Rendertarget instance
*/
public static Rendertarget createRTTFramebuffer(int width, int height) {
	int old_framebuffer = GL11.glGetInteger(EXTFramebufferObject.GL_FRAMEBUFFER_BINDING_EXT);
	int old_texture = GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);
	Rendertarget buffer = new Rendertarget(width,height);
	buffer.bind();

	int fboTexture = buffer.textureID;
	GL11.glBindTexture(GL11.GL_TEXTURE_2D, fboTexture);
	GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, 4, width, height, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_INT, (ByteBuffer) null);
	GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
	GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);

	EXTFramebufferObject.glBindRenderbufferEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, buffer.depthBufferID);
	EXTFramebufferObject.glRenderbufferStorageEXT(EXTFramebufferObject.GL_RENDERBUFFER_EXT, GL11.GL_DEPTH_COMPONENT, width, height);
	EXTFramebufferObject.glFramebufferRenderbufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_DEPTH_ATTACHMENT_EXT, EXTFramebufferObject.GL_RENDERBUFFER_EXT, buffer.depthBufferID);

	EXTFramebufferObject.glFramebufferTexture2DEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT, GL11.GL_TEXTURE_2D, fboTexture, 0);

	GL11.glBindTexture(GL11.GL_TEXTURE_2D, old_texture);
	EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, old_framebuffer);

	return buffer;
}
 

@Override
public void glFramebufferRenderbufferEXT(int param1, int param2, int param3, int param4) {
    EXTFramebufferObject.glFramebufferRenderbufferEXT(param1, param2, param3, param4);
}
 

@Override
public void glFramebufferRenderbufferEXT(final int target, final int attachment, final int renderBufferTarget,
                                         final int renderBuffer) {
    EXTFramebufferObject.glFramebufferRenderbufferEXT(target, attachment, renderBufferTarget, renderBuffer);
}