GPU (API)

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Revision as of 01:17, 18 March 2012 by Yevano (Talk | contribs) (OpenGL Methods)

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The GPU api provides interaction with and is part of the CCGPU peripheral.
Arguments surrounded with square brackets are optional.

API Methods

These methods can be used in any ComputerCraft program if the CCGPU api is installed.

Method name Description
gpu.getID([side]) coming soon
gpu.setRenderCode([side], renderCode) Sets the gpu rendering code, this code is ran every frame.

@param side the side the gpu is connected to
@param renderCode the code as a string
@return nil

gpu.setVar([side], name, value) coming soon
gpu.getLatestError([side]) coming soon

Render Methods

These methods can be used in render code when set using gpu.setRenderCode.

Method name Description
gpuCreateBuffer(width, height) Coming soon
gpuClearBuffer() Coming soon
gpuBindBuffer(id) Coming soon
gpuBindOutputBuffer(id) Coming soon
gpuGetOutputResolution(id) Coming soon

OpenGL Methods

These methods are part of OpenGL and can only be used in render code when set using gpu.setRenderCode.

Method name Description
glBegin(mode) Begins drawing something. mode should be a constant like GL_QUADS or GL_TRIANGLES. You must invoke this function before setting vertices for the shape.
glEnd() Invoke this when you've set all your vertices.
glBindTexture(id) Coming soon
glTexCoord2f(x, y) Coming soon
glVertex2f(x, y) Use this between glBegin(mode) and glEnd() to set a 2D vertex.
glVertex3f(x, y, z) Use this between glBegin(mode) and glEnd() to set a 3D vertex.
glColor3f(red, green, blue) Use this between glBegin(mode) and glEnd() to set the color.
glColor4f(red, green, blue, alpha) Use this between glBegin(mode) and glEnd() to set the color with alpha (opacity).

OpenGL Constants

These constants are part of OpenGL and can only be used in render code when set using gpu.setRenderCode.

Constant name Description
GL_QUADS Constant for drawing a quadrilateral.
GL_TRIANGLES Constant for drawing a triangle.
GL_POINTS Constant for drawing a pixel at each vertex given.