Libraries.Game.Graphics.AndroidGraphics

The GraphicsManager class represents a Quorum interface with OpenGL in order to draw on the screen. This is used internally by the Game class, and most users will not need to interact with this class directly.

This action attaches a shader onto an unlinked shader program.

This action activates a buffer and indicates what it should be used for. The first parameter is a code, such as GL_ARRAY_BUFFER, that indicates the purpose of the buffer, and the second is an ID generated by "CreateBuffer".

This action clears the screen with the currently stored color in OpenGL.

This action sets the color to clear the screen with in OpenGL.

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Example Code

Object o
        Object t
        integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smaller)

This action compiles a shader, identified by its ID number. The shader must have already had its source code set using SetShaderCode.

This action returns an ID for a new buffer in the rendering system. Buffers are used to relay information from the program to the graphics card. For example, they are used by VertexBufferObjects to communicate polygons and their associated info so they can be rendered. Before a buffer created by this action can be used, it has to be activated first with BindBuffer.

This action makes a new shader of the requested type (e.g., FRAGMENT_SHADER or VERTEX_SHADER from the Shader class) using the given source code. If the shader code successfully compiles, this action will return an integer ID representing that shader. If the shader can't be created or it does not successfully compile, this will alert an error.

This action gets an ID value for a new shader of the requested type (such as FRAGMENT_SHADER from Shader).

This action returns an integer ID representing a new shader program in the graphics system.

This action deletes a buffer in the rendering system. The ID provided should be an ID that was generated using CreateBuffer.

This action instructs the rendering system to delete the native resources allocated to a shader. After deleting a shader, it can't be used by the rendering system unless it's recompiled.

This action instructs the rendering system to delete the native resources allocated to a shader program. After deleting a shader program, it can't be used by the rendering system unless it's reloaded. Deleting a program doesn't automatically delete the shaders attached to it -- those must also be deleted manually.

This action makes a new shader of the requested type (e.g., FRAGMENT_SHADER or VERTEX_SHADER from the Shader class) using the given source code. If the shader code successfully compiles, this action will return an integer ID representing that shader. If the shader can't be created or it does not successfully compile, this will alert an error.

This action disables a rendering property in the native rendering system. Any property which can be enabled by EnableProperty can also be disabled using this action.

This action will disable a vertex input within the shader system. Whenever a polygon is sent to the rendering system, each vertex must provide input data for each enabled vertex input.

This action sends information stored in the active GL_ARRAY_BUFFER to be drawn by the rendering system.

This action renders the vertices stored in the active GL_ARRAY_BUFFER, using the indices stored in the GL_ELEMENTS_ARRAY_BUFFER to determine the order of rendering.

This action enables a rendering property in the native rendering system. For example, enabling GL_BLEND will make OpenGL blend together pixel fragments (necessary for proper transparency).

This action will enable a vertex input within the shader system. Whenever a polygon is sent to the rendering system, each vertex must provide input data for each enabled vertex input.

This action determines if two objects are equal based on their hash code values.

Example Code

use Libraries.Language.Object
        use Libraries.Language.Types.Text
        Object o
        Text t
        boolean result = o:Equals(t)

This action takes the ID of a compiled shader program and 3 empty HashTables. All three HashTables will be given the names of the uniforms as keys, and the HashTables will store a corresponding integer value representing the uniform's location ID, byte size, or type ID (as an OpenGL constant), respectively. This action also returns an array containing all of the names of the uniforms in this program.

This action gets the hash code for an object.

Example Code

Object o
        integer hash = o:GetHashCode()

This action returns the maximum number of textures that can be supported on the system. This number depends on the local hardware being used.

This action returns the number of "ShaderInput" variables in a linked program. A uniform is a variable provided to a shader which is the same no matter what the shader is processing (e.g., it is the same value for every vertex in a vertex shader or for every fragment in a fragment shader).

This action queries the rendering system for information about a uniform in the provided program. This will get the uniform at the given index and returns its internal location ID, size in bytes and its type (as identified by an OpenGL constant), using the provided Integer parameters to return the information. This will also directly return the name of the uniform.

This action takes the ID of a compiled shader program and 3 empty HashTables. All three HashTables will be given the names of the uniforms as keys, and the HashTables will store a corresponding integer value representing the uniform's location ID, byte size, or type ID (as an OpenGL constant), respectively. This action also returns an array containing all of the names of the uniforms in this program.

This action returns log information for the given shader, or the empty string if no log information is available. Typically this is used to get error information from a shader.

This action returns log information for a shader program, or the empty string if no log information is available. Typically this is used to get error information from a shader program.

This action returns the number of input variables in a linked program.

This action queries the rendering system for information about an input in the provided program. This will get the input at the given index and returns its internal location ID, size in bytes and its type (as identified by an OpenGL constant), using the provided Integer parameters to return the information. This will also directly return the name of the input.

This action takes the ID of a compiled shader program and 3 empty HashTables. All three HashTables will be given the names of the inputs as keys, and the HashTables will store a corresponding integer value representing the input's location ID, byte size, or type ID (as an OpenGL constant), respectively. This action also returns an array containing all of the names of the inputs in this program.

This action returns true if the given shader has been compiled, or false if the shader has not compiled (or if compilation was attempted but failed due to an error).

This action returns true if the given shader program has been linked, or false if the shader has not been linked (or if linking was attempted but failed due to an error).

This action links together the shaders that have been attached to the given shader program.

Sets how OpenGL stores and loads pixels as a number of bytes.

This action sets the "active texture" within the rendering system. When using other texture-modifying graphics commands that don't explicitly use a specific texture, the modifications will apply to the active texture.

This action sets the blending function used by the rendering system. This is most commonly used for transparency calculations.

This action sets the data that is stored in the currently activated buffer (using the BindBuffer action).

This action sets the data that is stored in the currently activated buffer (using the BindBuffer action).

This action determines which faces of objects should be culled by the rendering system. Most commonly, this is set to GL_BACK, which instructs the rendering system not to render back faces of objects (which would face away from the camera).

This action sets the function used to determine if a new value should overwrite an old value in the depth buffer. For example, a value of GL_LESS ensures that new values will overwrite old values in the depth buffer if they have a lower relative Z value than the previous value.

This action enables or disables writing to the depth buffer.

This action takes a range of values between 0 and 1 to indicate how much of the depth buffer should be used. Most commonly, this is set to 0 and 1 for the near and far values, respectively, which indicate that the entire range of the depth buffer should be used.

This action sets how OpenGL interprets virtual coordinates into screen coordinates, by setting the screen as though it were at the given virtual coordinates with the given width and height.

This action takes the ID of a compiled shader program and 3 empty HashTables. All three HashTables will be given the names of the inputs as keys, and the HashTables will store a corresponding integer value representing the input's location ID, byte size, or type ID (as an OpenGL constant), respectively. This action also returns an array containing all of the names of the inputs in this program.

This action associates shader code with a shader ID.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the value of a shader "uniform" variable to the given input values. The uniform is identified by a unique ID that is generated when a shader program using that uniform is compiled and linked.

This action sets the values of a shader "uniform" array variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked.

This action sets the value of a Matrix3 shader "uniform" variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked. The array is assumed to provide the matrix in column-major order, unless the transpose flag is set to true, in which case it will be assumed to be row-major instead.

This action sets the value of an array of Matrix3's in a shader "uniform" variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked. The array is assumed to provide the matrix in column-major order, unless the transpose flag is set to true, in which case it will be assumed to be row-major instead.

This action sets the value of a Matrix4 shader "uniform" variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked. The array is assumed to provide the matrix in column-major order, unless the transpose flag is set to true, in which case it will be assumed to be row-major instead.

This action sets the value of an array of Matrix4's in a shader "uniform" variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked. The array is assumed to provide the matrix in column-major order, unless the transpose flag is set to true, in which case it will be assumed to be row-major instead.

This action sets the values of an array of Vector2's in a shader "uniform" array variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked.

This action sets the values of an array of Vector3's in a shader "uniform" array variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked.

This action sets the values of an array of Vector4's in a shader "uniform" array variable. The uniform is identified by a unique ID that is generated when a shader program using the uniform is compiled and linked.

Sets an option identified by the parameterType code inside the texture identified by the given targetTexture ID using the given parameterValue.

This action informs the rendering system of how to interpret elements of vertex input data for a particular input.

This action tells the graphics system to render content using the shader program indicated by the provided ID.