CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!
CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!
Path: blob/master/assets/shaders/natural.vsh
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#ifdef GL_ES
precision mediump float;
precision mediump int;
#endif
uniform vec2 u_texelDelta;
attribute vec4 a_position;
attribute vec2 a_texcoord0;
varying vec4 v_texcoord0;
varying vec4 v_texcoord1;
varying vec4 v_texcoord2;
varying vec4 v_texcoord3;
void main()
{
gl_Position=a_position;
v_texcoord0=a_texcoord0.xyxy+vec4(-0.5,-0.5,-1.5,-1.5)*u_texelDelta.xyxy;
v_texcoord1=a_texcoord0.xyxy+vec4( 0.5,-0.5, 1.5,-1.5)*u_texelDelta.xyxy;
v_texcoord2=a_texcoord0.xyxy+vec4(-0.5, 0.5,-1.5, 1.5)*u_texelDelta.xyxy;
v_texcoord3=a_texcoord0.xyxy+vec4( 0.5, 0.5, 1.5, 1.5)*u_texelDelta.xyxy;
}