playcanvas/build/playcanvas/src/scene/shader-lib/chunks/common/vert/transform.js

PlayCanvas WebGL game engine

var transformVS = "\n#ifdef PIXELSNAP\nuniform vec4 uScreenSize;\n#endif\n#ifdef SCREENSPACE\nuniform float projectionFlipY;\n#endif\nvec4 evalWorldPosition(vec3 vertexPosition, mat4 modelMatrix) {\n	vec3 localPos = getLocalPosition(vertexPosition);\n	#ifdef NINESLICED\n		localPos.xz *= outerScale;\n		vec2 positiveUnitOffset = clamp(vertexPosition.xz, vec2(0.0), vec2(1.0));\n		vec2 negativeUnitOffset = clamp(-vertexPosition.xz, vec2(0.0), vec2(1.0));\n		localPos.xz += (-positiveUnitOffset * innerOffset.xy + negativeUnitOffset * innerOffset.zw) * vertex_texCoord0.xy;\n		vTiledUv = (localPos.xz - outerScale + innerOffset.xy) * -0.5 + 1.0;\n		localPos.xz *= -0.5;\n		localPos = localPos.xzy;\n	#endif\n	vec4 posW = modelMatrix * vec4(localPos, 1.0);\n	#ifdef SCREENSPACE\n		posW.zw = vec2(0.0, 1.0);\n	#endif\n	return posW;\n}\nvec4 getPosition() {\n	dModelMatrix = getModelMatrix();\n	vec4 posW = evalWorldPosition(vertex_position.xyz, dModelMatrix);\n	dPositionW = posW.xyz;\n	vec4 screenPos;\n	#ifdef UV1LAYOUT\n	screenPos = vec4(vertex_texCoord1.xy * 2.0 - 1.0, 0.5, 1);\n		#ifdef WEBGPU\n		screenPos.y *= -1.0;\n		#endif\n	#else\n	#ifdef SCREENSPACE\n	screenPos = posW;\n	screenPos.y *= projectionFlipY;\n	#else\n	screenPos = matrix_viewProjection * posW;\n	#endif\n	#ifdef PIXELSNAP\n	screenPos.xy = (screenPos.xy * 0.5) + 0.5;\n	screenPos.xy *= uScreenSize.xy;\n	screenPos.xy = floor(screenPos.xy);\n	screenPos.xy *= uScreenSize.zw;\n	screenPos.xy = (screenPos.xy * 2.0) - 1.0;\n	#endif\n	#endif\n	return screenPos;\n}\nvec3 getWorldPosition() {\n	return dPositionW;\n}\n";

export { transformVS as default };