@animech-public/playcanvas

Version:

PlayCanvas WebGL game engine

30 lines (28 loc) • 747 B

JavaScript

var skyboxVS = `
attribute vec3 aPosition;
#ifndef VIEWMATRIX
#define VIEWMATRIX
uniform mat4 matrix_view;
#endif
uniform mat4 matrix_projectionSkybox;
uniform mat3 cubeMapRotationMatrix;
varying vec3 vViewDir;
#ifdef SKYMESH
	uniform mat4 matrix_model;
	varying vec3 vWorldPos;
#endif
void main(void) {
	mat4 view = matrix_view;
	#ifdef SKYMESH
		vec4 worldPos = matrix_model * vec4(aPosition, 1.0);
		vWorldPos = worldPos.xyz;
		gl_Position = matrix_projectionSkybox * view * worldPos;
	#else
		view[3][0] = view[3][1] = view[3][2] = 0.0;
		gl_Position = matrix_projectionSkybox * view * vec4(aPosition, 1.0);
		vViewDir = aPosition * cubeMapRotationMatrix;
	#endif
	gl_Position.z = gl_Position.w - 1.0e-7;
}
`;

export { skyboxVS as default };