GL_OES_tessellation_point_size#
Supported Hardware#
Series6XT
Valid APIs#
OpenGL ES 3.1
Description#
This extension adds programmable point size to the tessellation shaders and allows resizing of generated point sprites that come through as input - useful for things like particle effects.
Registry Link#
https://www.khronos.org/registry/gles/extensions/OES/OES_tessellation_shader.txt
Example#
// Tessellation control shader
#extension GL_OES_tessellation_shader : require
#extension GL_OES_tessellation_point_size : require
#extension GL_OES_shader_io_blocks : require
layout(vertices = 1) out;
void main(void)
{
gl_TessLevelOuter[0] = 2.0;
gl_TessLevelOuter[1] = 4.0;
gl_TessLevelOuter[2] = 6.0;
gl_TessLevelOuter[3] = 8.0;
gl_TessLevelInner[0] = 8.0;
gl_TessLevelInner[1] = 8.0;
gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
gl_out[gl_InvocationID].gl_PointSize = gl_in[gl_InvocationID].gl_PointSize * 1.1;
}