Render 3d Box | The Fabric Project | Page 1

nimble kiln Nov 26, 2024, 4:26 AM

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How do I render a 3d box at x, y, z with width, height and colored r, g, b, a?

ruby steppe Nov 26, 2024, 10:13 AM

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same question here :D

forest cypress Nov 26, 2024, 10:24 AM

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This question has surely been answered previously. One option is to use WoldRenderer.drawBox

nimble kiln Nov 26, 2024, 4:43 PM

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ruby steppe same question here :D

if you find anything let me know and i'll let you know if I find anything

nimble kiln Nov 26, 2024, 4:44 PM

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forest cypress This question has surely been answered previously. One option is to use WoldRend...

I need to be able to render cyl too though

forest cypress Nov 26, 2024, 4:46 PM

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cyl?

flat turret Nov 26, 2024, 4:49 PM

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cylinder most likely

forest cypress Nov 26, 2024, 4:50 PM

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Impossible, in minecraft?!?!

flat turret Nov 26, 2024, 4:50 PM

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with gl its not

forest cypress Nov 26, 2024, 4:50 PM

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That was a joke :8

flat turret Nov 26, 2024, 4:51 PM

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iapprove

nimble kiln Nov 26, 2024, 4:51 PM

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flat turret cylinder most likely

yes

nimble kiln Nov 26, 2024, 4:51 PM

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forest cypress cyl?

how do I do that

flat turret Nov 26, 2024, 4:51 PM

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https://tenor.com/SIbP.gif

Tenor

forest cypress Nov 26, 2024, 4:52 PM

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nimble kiln how do I do that

Use Tesselator and supply vertices in the correct order

nimble kiln Nov 26, 2024, 4:52 PM

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wait what

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i thought tesselator was for

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like

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hud elements

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?

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can i have an example

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of like a box or something

forest cypress Nov 26, 2024, 4:52 PM

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Doesnt WorlderRenderer.drawbox use Tesselator

nimble kiln Nov 26, 2024, 4:53 PM

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not sure

forest cypress Nov 26, 2024, 4:56 PM

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public static void drawBox(Vector3d cam, VertexConsumer vertexConsumer, Box box, float red, float green, float blue, float alpha) {
        float minX = (float) (box.minX - cam.x);
        float minY = (float) (box.minY - cam.y);
        float minZ = (float) (box.minZ - cam.z);
        float maxX = (float) (box.maxX - cam.x);
        float maxY = (float) (box.maxY - cam.y);
        float maxZ = (float) (box.maxZ - cam.z);
        ...
    }

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        vertexConsumer.vertex(minX, minY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, minY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, minY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, maxY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, minY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, minY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, minY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, maxY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, maxY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, maxY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, maxY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, maxY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, maxY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, minY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, minY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, minY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, minY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, minY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(minX, maxY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, maxY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, minY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, maxY, maxZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, maxY, minZ).color(red, green, blue, alpha);
        vertexConsumer.vertex(maxX, maxY, maxZ).color(red, green, blue, alpha);

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Didn't fit in one message

nimble kiln Nov 26, 2024, 4:56 PM

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what's that from

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drawBox?

forest cypress Nov 26, 2024, 4:56 PM

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Yea more or less

nimble kiln Nov 26, 2024, 4:56 PM

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what's cam

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how do I access it

forest cypress Nov 26, 2024, 4:57 PM

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You can call that function like so:

BufferBuilder vertices = Tessellator.getInstance().begin(VertexFormat.DrawMode.DEBUG_LINES, VertexFormats.POSITION_COLOR);
        RenderSystem.setShader(GameRenderer::getPositionColorProgram);

drawBox(cam, vertices, box, 0.6f, 1f, 0.5f, 1f);
        BufferRenderer.drawWithGlobalProgram(vertices.end());

nimble kiln Nov 26, 2024, 4:57 PM

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i see

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okay

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how do I access cam though?

forest cypress Nov 26, 2024, 4:58 PM

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It seems that 1.21.3 doesnt have WorldRenderer#drawBox anymore

nimble kiln Nov 26, 2024, 4:58 PM

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forest cypress It seems that 1.21.3 doesnt have `WorldRenderer#drawBox` anymore

1.21

forest cypress Nov 26, 2024, 4:58 PM

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forest cypress ```java public static void drawBox(Vector3d cam, VertexConsumer vertexConsumer, ...

So just copy this function

nimble kiln Nov 26, 2024, 4:58 PM

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so it's fine

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how do I get

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cam

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is that just player eyes or something

forest cypress Nov 26, 2024, 4:59 PM

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Yeah its the camera position

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MinecraftClient.getInstance().getCameraEntity().getCameraPosVec(tickDelta)

nimble kiln Nov 26, 2024, 4:59 PM

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ok

forest cypress Nov 26, 2024, 5:00 PM

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But you get it passed as a parameter in most rendering functions

nimble kiln Nov 26, 2024, 5:00 PM

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couldnt I put vertex consumer and camera in the rendering file

forest cypress Nov 26, 2024, 5:00 PM

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Not sure what you mean by that

nimble kiln Nov 26, 2024, 5:00 PM

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like

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instead of passing it into the function

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why dont I just

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not pass it in

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and have it in the function

forest cypress Nov 26, 2024, 5:00 PM

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Yes you can do that

nimble kiln Nov 26, 2024, 5:00 PM

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okay

forest cypress Nov 26, 2024, 5:01 PM

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But if you want to draw a lot of boxes this method isn't very efficent

nimble kiln Nov 26, 2024, 5:01 PM

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how do I get tick delta

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what should I put

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since I dont have tick delta

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in my render function

forest cypress Nov 26, 2024, 5:02 PM

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Well you should

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tickDelta is a bad name btw. Think of it as "tickProgress"

nimble kiln Nov 26, 2024, 5:03 PM

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well I know what it is but I dont have it anywhere

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how do I get it

forest cypress Nov 26, 2024, 5:04 PM

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Somewhere from GameRenderer probably

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You can use 0 if its just for debugging

nimble kiln Nov 26, 2024, 5:06 PM

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ok

nimble kiln Nov 26, 2024, 5:13 PM

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forest cypress ```java public static void drawBox(Vector3d cam, VertexConsumer vertexConsumer, ...

how can we make this function not have Box, but x, y, z, width, height

forest cypress Nov 26, 2024, 5:14 PM

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Just change the parameters?

nimble kiln Nov 26, 2024, 5:14 PM

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yeah, but for things like box.maxX or whatever it wouldn't work

forest cypress Nov 26, 2024, 5:14 PM

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maxX is just x + width

nimble kiln Nov 26, 2024, 5:14 PM

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oh

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okay

forest cypress Nov 26, 2024, 5:15 PM

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Well unless you want x,y,z to specify the center

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Then minX is x - width/2 and maxX is x + width/2

nimble kiln Nov 26, 2024, 5:19 PM

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📎 message.txt

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ThreeDimRenderer.drawBox(5, 5, 5, 2, 2, 2, 255, 255, 255, 255);

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doesn't seem to draw anything

forest cypress Nov 26, 2024, 5:19 PM

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You're calling it every frame?

nimble kiln Nov 26, 2024, 5:20 PM

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yes

forest cypress Nov 26, 2024, 5:20 PM

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Make a void world and go to 0,0,0, see if you see anything

nimble kiln Nov 26, 2024, 5:20 PM

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okay nevermind I had to make it bigger

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but uh

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its not really..

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boxing

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it's just a two dim square on my screen and sometimes moves when i turn my camera

nimble kiln Nov 26, 2024, 5:21 PM

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nimble kiln it's just a two dim square on my screen and sometimes moves when i turn my camer...

moves when I move my player*

forest cypress Nov 26, 2024, 5:26 PM

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You're probably drawing at a time which isn't suited for 3d rendering

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The RenderSystem state must be set up correctly

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Such as the view and projection matrix

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It's simplest to just move your draw call elsewhere

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For example one of the fapi render callbacks

nimble kiln Nov 26, 2024, 7:43 PM

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forest cypress You're probably drawing at a time which isn't suited for 3d rendering

oh

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uhhh

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📎 message.txt

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that's where I activate it

nimble kiln Nov 26, 2024, 8:12 PM

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OH

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wait

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onFrame is called

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in inGameHud

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.render

#Render 3d Box