Package net.ixdarklord.coolcatcanvas.internal.client.render

Class CanvasProgram

java.lang.Object

net.ixdarklord.coolcatcanvas.internal.client.render.CanvasProgram

All Implemented Interfaces:

AutoCloseable

public final class CanvasProgram
extends Object
implements AutoCloseable

A GLSL program linked from a vertex and a fragment shader in resources. Sources go through vanilla's preprocessor, with namespaced imports: #moj_import <namespace:file.glsl> reads assets/<namespace>/shaders/include/, #moj_import "file.glsl" a path next to the importing shader. Extra #defines go right after #version. The Position attribute is bound to location 0, where 1.20.1's vertex formats put it.

Kept out of vanilla's program caches, so its names never collide with vanilla's and reloading vanilla's shaders never frees it. Render thread only.

Method Summary

Modifier and Type	Method	Description
void	close()
static CanvasProgram	compile(net.minecraft.server.packs.resources.ResourceManager resources, String name, net.minecraft.resources.ResourceLocation vertex, net.minecraft.resources.ResourceLocation fragment, List<String> defines)
boolean	has(String uniform)
int	id()
int	location(String uniform)	The uniform's location, or -1 if the program doesn't use it.
String	name()
void	setFloat(String uniform, float value)
void	setInt(String uniform, int value)
void	setMat4(String uniform, org.joml.Matrix4fc matrix)
void	setVec2(String uniform, float x, float y)
void	setVec4(String uniform, float[] xyzw)
void	setVec4(String uniform, float x, float y, float z, float w)
void	setVec4Array(String uniform, float[] values)	A vec4[], from 4 floats per element.
static void	unuse()
void	use()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

compile

public static CanvasProgram compile(net.minecraft.server.packs.resources.ResourceManager resources,
 String name,
 net.minecraft.resources.ResourceLocation vertex,
 net.minecraft.resources.ResourceLocation fragment,
 List<String> defines)
                             throws IOException

Parameters:

vertex - the vertex shader's full path, e.g. minecraft:shaders/program/sobel.vsh

fragment - the fragment shader's full path

defines - names to #define in both shaders

Throws:

IOException - if a file is missing, or a shader doesn't compile or link

name

public String name()

id

public int id()

use

public void use()

unuse

public static void unuse()

location

public int location(String uniform)

The uniform's location, or -1 if the program doesn't use it.

has

public boolean has(String uniform)

setInt

public void setInt(String uniform,
 int value)

setFloat

public void setFloat(String uniform,
 float value)

setVec2

public void setVec2(String uniform,
 float x,
 float y)

setVec4

public void setVec4(String uniform,
 float x,
 float y,
 float z,
 float w)

setVec4

public void setVec4(String uniform,
 float[] xyzw)

setVec4Array

public void setVec4Array(String uniform,
 float[] values)

A vec4[], from 4 floats per element.

setMat4

public void setMat4(String uniform,
 org.joml.Matrix4fc matrix)

close

public void close()

Specified by:

close in interface AutoCloseable