Projection.java

net.minecraft.client.renderer.Projection

信息

• 全限定名：net.minecraft.client.renderer.Projection
• 类型：public class
• 包：net.minecraft.client.renderer
• 源码路径：src/main/java/net/minecraft/client/renderer/Projection.java
• 起始行号：L10
• 职责：

  TODO

字段/常量

• projectionType

  • 类型: ProjectionType
  • 修饰符: private
  • 源码定位: L11
  • 说明:

    TODO

• zNear

  • 类型: float
  • 修饰符: private
  • 源码定位: L12
  • 说明:

    TODO

• zFar

  • 类型: float
  • 修饰符: private
  • 源码定位: L13
  • 说明:

    TODO

• perspectiveFov

  • 类型: float
  • 修饰符: private
  • 源码定位: L14
  • 说明:

    TODO

• width

  • 类型: float
  • 修饰符: private
  • 源码定位: L15
  • 说明:

    TODO

• height

  • 类型: float
  • 修饰符: private
  • 源码定位: L16
  • 说明:

    TODO

• orthoInvertY

  • 类型: boolean
  • 修饰符: private
  • 源码定位: L17
  • 说明:

    TODO

• isMatrixDirty

  • 类型: boolean
  • 修饰符: private
  • 源码定位: L18
  • 说明:

    TODO

• matrix

  • 类型: Matrix4f
  • 修饰符: private final
  • 源码定位: L19
  • 说明:

    TODO

• matrixVersion

  • 类型: long
  • 修饰符: private
  • 源码定位: L20
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

• 无

方法

下面的方法块按源码顺序生成。

public void setupPerspective(float zNear, float zFar, float fov, float width, float height) @ L22

• 方法名：setupPerspective
• 源码定位：L22
• 返回类型：void
• 修饰符：public

参数:

• zNear: float
• zFar: float
• fov: float
• width: float
• height: float

说明:

TODO

public void setupOrtho(float zNear, float zFar, float width, float height, boolean invertY) @ L39

• 方法名：setupOrtho
• 源码定位：L39
• 返回类型：void
• 修饰符：public

参数:

• zNear: float
• zFar: float
• width: float
• height: float
• invertY: boolean

说明:

TODO

public void setSize(float width, float height) @ L57

• 方法名：setSize
• 源码定位：L57
• 返回类型：void
• 修饰符：public

参数:

• width: float
• height: float

说明:

TODO

public Matrix4f getMatrix(Matrix4f dest) @ L63

• 方法名：getMatrix
• 源码定位：L63
• 返回类型：Matrix4f
• 修饰符：public

参数:

• dest: Matrix4f

说明:

TODO

public long getMatrixVersion() @ L95

• 方法名：getMatrixVersion
• 源码定位：L95
• 返回类型：long
• 修饰符：public

参数:

• 无

说明:

TODO

public float zNear() @ L99

• 方法名：zNear
• 源码定位：L99
• 返回类型：float
• 修饰符：public

参数:

• 无

说明:

TODO

public float zFar() @ L103

• 方法名：zFar
• 源码定位：L103
• 返回类型：float
• 修饰符：public

参数:

• 无

说明:

TODO

public float width() @ L107

• 方法名：width
• 源码定位：L107
• 返回类型：float
• 修饰符：public

参数:

• 无

说明:

TODO

public float height() @ L111

• 方法名：height
• 源码定位：L111
• 返回类型：float
• 修饰符：public

参数:

• 无

说明:

TODO

public float fov() @ L115

• 方法名：fov
• 源码定位：L115
• 返回类型：float
• 修饰符：public

参数:

• 无

说明:

TODO

public boolean invertY() @ L119

• 方法名：invertY
• 源码定位：L119
• 返回类型：boolean
• 修饰符：public

参数:

• 无

说明:

TODO

代码

@OnlyIn(Dist.CLIENT)
public class Projection {
    private ProjectionType projectionType = ProjectionType.PERSPECTIVE;
    private float zNear;
    private float zFar;
    private float perspectiveFov;
    private float width;
    private float height;
    private boolean orthoInvertY;
    private boolean isMatrixDirty;
    private final Matrix4f matrix = new Matrix4f();
    private long matrixVersion = -1L;
 
    public void setupPerspective(float zNear, float zFar, float fov, float width, float height) {
        if (this.projectionType != ProjectionType.PERSPECTIVE
            || this.zNear != zNear
            || this.zFar != zFar
            || this.perspectiveFov != fov
            || this.width != width
            || this.height != height) {
            this.isMatrixDirty = true;
            this.projectionType = ProjectionType.PERSPECTIVE;
            this.zNear = zNear;
            this.zFar = zFar;
            this.perspectiveFov = fov;
            this.width = width;
            this.height = height;
        }
    }
 
    public void setupOrtho(float zNear, float zFar, float width, float height, boolean invertY) {
        if (this.projectionType != ProjectionType.ORTHOGRAPHIC
            || this.zNear != zNear
            || this.zFar != zFar
            || this.width != width
            || this.height != height
            || this.orthoInvertY != invertY) {
            this.isMatrixDirty = true;
            this.projectionType = ProjectionType.ORTHOGRAPHIC;
            this.zNear = zNear;
            this.zFar = zFar;
            this.perspectiveFov = 0.0F;
            this.width = width;
            this.height = height;
            this.orthoInvertY = invertY;
        }
    }
 
    public void setSize(float width, float height) {
        this.isMatrixDirty = true;
        this.width = width;
        this.height = height;
    }
 
    public Matrix4f getMatrix(Matrix4f dest) {
        if (!this.isMatrixDirty) {
            return dest.set(this.matrix);
        } else {
            this.isMatrixDirty = false;
            this.matrixVersion++;
            return this.projectionType == ProjectionType.PERSPECTIVE
                ? dest.set(
                    this.matrix
                        .setPerspective(
                            this.perspectiveFov * (float) (Math.PI / 180.0),
                            this.width / this.height,
                            this.zNear,
                            this.zFar,
                            RenderSystem.getDevice().isZZeroToOne()
                        )
                )
                : dest.set(
                    this.matrix
                        .setOrtho(
                            0.0F,
                            this.width,
                            this.orthoInvertY ? this.height : 0.0F,
                            this.orthoInvertY ? 0.0F : this.height,
                            this.zNear,
                            this.zFar,
                            RenderSystem.getDevice().isZZeroToOne()
                        )
                );
        }
    }
 
    public long getMatrixVersion() {
        return this.isMatrixDirty ? this.matrixVersion + 1L : this.matrixVersion;
    }
 
    public float zNear() {
        return this.zNear;
    }
 
    public float zFar() {
        return this.zFar;
    }
 
    public float width() {
        return this.width;
    }
 
    public float height() {
        return this.height;
    }
 
    public float fov() {
        return this.perspectiveFov;
    }
 
    public boolean invertY() {
        return this.orthoInvertY;
    }
}

引用的其他类

• ProjectionType

  • 引用位置: 字段

• RenderSystem

  • 引用位置: 方法调用
  • 关联成员: RenderSystem.getDevice()