Texture warping on gateways when scaled

[Da-Technomancer]

Describe the bug
The purple 'rift' texture on the gateway is warped or distorted for non-minimum size gateways, and tends to distort further when the gateway angle changes during dialing.

Screenshots [Optional]
(Image courtesy of Kortis on the Discord)

[Da-Technomancer]

Issue is in this section:

Crossroads/src/main/java/com/Da_Technomancer/crossroads/render/TESR/GatewayControllerRenderer.java

Lines 310 to 350 in ac432c4

	//Render a double sided octagonal portal
	//Bright lighting, translucent
	//Has to be done via 3 quadrilaterals for the octagon, all done twice for both sides
	int[] col = {255, 255, 255, 200};
	//Switch builder to translucent
	builder = buffer.getBuffer(RenderType.translucentNoCrumbling());
	//Vertices are commented with the number of the vertex on the final octagon
	//Front
	CRRenderUtil.addVertexBlock(builder, matrix, octInWid, -octInLen, 0, portalUMid2, portalVEn, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//1
	CRRenderUtil.addVertexBlock(builder, matrix, -octInWid, -octInLen, 0, portalUMid1, portalVEn, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//2
	CRRenderUtil.addVertexBlock(builder, matrix, -octInLen, -octInWid, 0, portalUSt, portalVMid2, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//3
	CRRenderUtil.addVertexBlock(builder, matrix, -octInLen, octInWid, 0, portalUSt, portalVMid1, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//4
	CRRenderUtil.addVertexBlock(builder, matrix, -octInLen, octInWid, 0, portalUSt, portalVMid1, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//4
	CRRenderUtil.addVertexBlock(builder, matrix, -octInWid, octInLen, 0, portalUMid1, portalVSt, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//5
	CRRenderUtil.addVertexBlock(builder, matrix, octInLen, -octInWid, 0, portalUEn, portalVMid2, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//8
	CRRenderUtil.addVertexBlock(builder, matrix, octInWid, -octInLen, 0, portalUMid2, portalVEn, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//1
	CRRenderUtil.addVertexBlock(builder, matrix, -octInWid, octInLen, 0, portalUMid1, portalVSt, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//5
	CRRenderUtil.addVertexBlock(builder, matrix, octInWid, octInLen, 0, portalUMid2, portalVSt, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//6
	CRRenderUtil.addVertexBlock(builder, matrix, octInLen, octInWid, 0, portalUEn, portalVMid1, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//7
	CRRenderUtil.addVertexBlock(builder, matrix, octInLen, -octInWid, 0, portalUEn, portalVMid2, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//8
	//Other front
	CRRenderUtil.addVertexBlock(builder, matrix, octInWid, -octInLen, 0, portalUMid2, portalVEn, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//1
	CRRenderUtil.addVertexBlock(builder, matrix, -octInLen, octInWid, 0, portalUSt, portalVMid1, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//4
	CRRenderUtil.addVertexBlock(builder, matrix, -octInLen, -octInWid, 0, portalUSt, portalVMid2, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//3
	CRRenderUtil.addVertexBlock(builder, matrix, -octInWid, -octInLen, 0, portalUMid1, portalVEn, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//2
	CRRenderUtil.addVertexBlock(builder, matrix, -octInLen, octInWid, 0, portalUSt, portalVMid1, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//4
	CRRenderUtil.addVertexBlock(builder, matrix, octInWid, -octInLen, 0, portalUMid2, portalVEn, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//1
	CRRenderUtil.addVertexBlock(builder, matrix, octInLen, -octInWid, 0, portalUEn, portalVMid2, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//8
	CRRenderUtil.addVertexBlock(builder, matrix, -octInWid, octInLen, 0, portalUMid1, portalVSt, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//5
	CRRenderUtil.addVertexBlock(builder, matrix, -octInWid, octInLen, 0, portalUMid1, portalVSt, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//5
	CRRenderUtil.addVertexBlock(builder, matrix, octInLen, -octInWid, 0, portalUEn, portalVMid2, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//8
	CRRenderUtil.addVertexBlock(builder, matrix, octInLen, octInWid, 0, portalUEn, portalVMid1, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//7
	CRRenderUtil.addVertexBlock(builder, matrix, octInWid, octInLen, 0, portalUMid2, portalVSt, 0, 0, 1, CRRenderUtil.BRIGHT_LIGHT, col);//6

This does not need to be rendered as a three-segment octagon; taking advantage of the cutout render type by switching to a single square polygon encompassing the full octagonal area would simplify the transformations of the vertices, probably eliminating any errors.