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POOpenGL equivalent to GL_POINT_SIZE_ARRAY_OES?
 

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  1. POOpenGL equivalent to GL_POINT_SIZE_ARRAY_OES?
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    <p>I'm trying to draw point sprites in a small Mac app. I want each sprite to have its own size, and I know that OpenGL ES has the client state "GL_POINT_SIZE_ARRAY_OES".</p> <p>I did some googling and discovered that there is a similar value "GL_POINT_SIZE_ARRAY_APPLE" which (you'd think) should do the same thing. For some reason, though, it doesn't seem to. Here's my drawing code:</p> <pre><code>glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_POINT_SIZE_ARRAY_APPLE); glVertexPointer(2, GL_FLOAT, sizeof(SpriteData), spriteVertices); glPointSizePointerAPPLE(GL_FLOAT, sizeof(SpriteData), spriteVertices + sizeof(LocationF)); glDrawArrays(GL_POINTS, 0, spriteCount); glDisableClientState(GL_POINT_SIZE_ARRAY_APPLE); glDisableClientState(GL_VERTEX_ARRAY); </code></pre> <p>SpriteData is a struct containing the vertex/size data of each sprite. spriteVertices is just an interleaved array of that struct. </p> <p>The vertex pointer is working fine; it's drawing the sprites, but seems to be ignoring their size values. It instead defaults to the value set by glPointSize().</p> <p>Despite the fact that this code compiles with no warnings, it seems very suspicious to me that googling "GL_POINT_SIZE_ARRAY_APPLE" brings up almost no results. Is this a useless parameter? If so, how else can I achieve what I want?</p>
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