Java Matrix3f类代码示例

import org.joml.Matrix3f; //导入依赖的package包/类
@Override
public boolean init()
{
    if (!initDisplay())
        return false;
    this.texCoordTransform = new Matrix3f();
    this.model = new Matrix4f();
    this.initVBO();
    try
    {
        this.initShaderProgram(new ShaderProgram(IOUtils.inToStr(this.getClass().getResourceAsStream("/assets/opengb/shaders/base.vert")), IOUtils.inToStr(this.getClass().getResourceAsStream("/assets/opengb/shaders/base.frag"))));
    } catch (IOException e)
    {
        throw new RuntimeException(e); // This shouldn't be possible
    }
    texture = new Texture();
    texture.create(Constants.SCREEN_W, Constants.SCREEN_H, screenBuffer);
    glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    return true;
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public static void testObObTipToTip() {
    Vector3f c0 = new Vector3f();
    float EPSILON = 1E-4f;
    /* Position the second box so that they "almost" intersect */
    float a = (float) Math.sqrt(1 + 1) + (float) Math.sqrt(1 + 1);
    Vector3f c1 = new Vector3f(a + EPSILON, 0, 0);
    Matrix3f m = new Matrix3f().rotateXYZ(0, (float) Math.toRadians(45.0), 0);
    Vector3f ux0 = m.getColumn(0, new Vector3f());
    Vector3f uy0 = m.getColumn(1, new Vector3f());
    Vector3f uz0 = m.getColumn(2, new Vector3f());
    Vector3f ux1 = m.getColumn(0, new Vector3f());
    Vector3f uy1 = m.getColumn(1, new Vector3f());
    Vector3f uz1 = m.getColumn(2, new Vector3f());
    Vector3f hs = new Vector3f(1);
    boolean intersects = Intersectionf.testObOb(c0, ux0, uy0, uz0, hs, c1, ux1, uy1, uz1, hs);
    assertFalse(intersects); // <- they do not intersect
    /* Position the second box so that they do intersect */
    c1 = new Vector3f((float) Math.sqrt(2) * 2 - EPSILON, 0, 0);
    intersects = Intersectionf.testObOb(c0, ux0, uy0, uz0, hs, c1, ux1, uy1, uz1, hs);
    assertTrue(intersects); // <- they do intersect
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public static void testObOb() {
    float a = (float) (Math.sqrt(2.0*2.0 + 2.0*2.0) + Math.sqrt(0.5*0.5 + 0.5*0.5));
    float EPSILON = 1E-4f;
    Vector3f c0 = new Vector3f(0, 0, a - EPSILON);
    Vector3f hs0 = new Vector3f(0.5f, 0.5f, 0.5f);
    Vector3f c1 = new Vector3f(0, 0, 0);
    Vector3f hs1 = new Vector3f(2, 0.5f, 2);
    Matrix3f m = new Matrix3f().rotateY((float) Math.toRadians(45));
    Vector3f ux0 = m.getColumn(0, new Vector3f());
    Vector3f uy0 = m.getColumn(1, new Vector3f());
    Vector3f uz0 = m.getColumn(2, new Vector3f());
    Vector3f ux1 = m.getColumn(0, new Vector3f());
    Vector3f uy1 = m.getColumn(1, new Vector3f());
    Vector3f uz1 = m.getColumn(2, new Vector3f());
    boolean intersects = Intersectionf.testObOb(c0, ux0, uy0, uz0, hs0, c1, ux1, uy1, uz1, hs1);
    assertTrue(intersects); // <- they DO intersect
    c0 = new Vector3f(0, 0, a + EPSILON);
    intersects = Intersectionf.testObOb(c0, ux0, uy0, uz0, hs0, c1, ux1, uy1, uz1, hs1);
    assertFalse(intersects); // <- they do not intersect
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
private void renderParticles(Window window, Camera camera, Scene scene) {
    particlesShaderProgram.bind();

    particlesShaderProgram.setUniform("texture_sampler", 0);
    Matrix4f projectionMatrix = window.getProjectionMatrix();
    particlesShaderProgram.setUniform("projectionMatrix", projectionMatrix);

    Matrix4f viewMatrix = camera.getViewMatrix();
    IParticleEmitter[] emitters = scene.getParticleEmitters();
    int numEmitters = emitters != null ? emitters.length : 0;

    glDepthMask(false);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE);

    Matrix3f aux = new Matrix3f();
    for (int i = 0; i < numEmitters; i++) {
        IParticleEmitter emitter = emitters[i];
        InstancedMesh mesh = (InstancedMesh) emitter.getBaseParticle().getMesh();

        Texture text = mesh.getMaterial().getTexture();
        particlesShaderProgram.setUniform("numCols", text.getNumCols());
        particlesShaderProgram.setUniform("numRows", text.getNumRows());

        mesh.renderListInstanced(emitter.getParticles(), true, transformation, viewMatrix, null);
    }

    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glDepthMask(true);

    particlesShaderProgram.unbind();
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
/**
 * Stores matrix in a direct buffer.
 *
 * @param matrix Matrix to be stored in a direct buffer.
 * @return Direct buffer containing matrix.
 */
public static FloatBuffer toDirectBuffer(Matrix3f matrix) {
    FloatBuffer buffer = createFloatBuffer(9);
    matrix.get(buffer);
    buffer.flip();
    return buffer;
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public void setUniform(String uniformName, Matrix3f value) {
	int loc = getUniformLocation(uniformName);
	
	if(loc != -1) {
		setUniform(getUniformLocation(uniformName), value);
	}
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
/**
 * <p>
 * Set a {@code mat3} value.
 * </p>
 *
 * @param name The name of the uniform in the shader.
 * @param value The value of the uniform.
 */
public final void setMatrix3f(String name, Matrix3f value)
{
	if(!ShaderInternal.hasUniform(asset.shader, name) || !ShaderInternal.getUniformType(asset.shader, name).equals("mat3"))
	{
		Logger.logWarning("Shader: " + getShader().getName() + " does not contain a mat3 with the name: " + name);
		return;
	}
	
	asset.values.put(name, value);
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
private void renderParticles(Window window, Camera camera, Scene scene) {
    particlesShaderProgram.bind();

    particlesShaderProgram.setUniform("texture_sampler", 0);
    Matrix4f projectionMatrix = transformation.getProjectionMatrix();
    particlesShaderProgram.setUniform("projectionMatrix", projectionMatrix);

    Matrix4f viewMatrix = transformation.getViewMatrix();
    IParticleEmitter[] emitters = scene.getParticleEmitters();
    int numEmitters = emitters != null ? emitters.length : 0;

    glDepthMask(false);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE);

    Matrix3f aux = new Matrix3f();
    for (int i = 0; i < numEmitters; i++) {
        IParticleEmitter emitter = emitters[i];
        InstancedMesh mesh = (InstancedMesh)emitter.getBaseParticle().getMesh();

        Texture text = mesh.getMaterial().getTexture();
        particlesShaderProgram.setUniform("numCols", text.getNumCols());
        particlesShaderProgram.setUniform("numRows", text.getNumRows());

        mesh.renderListInstanced(emitter.getParticles(), true, transformation, viewMatrix, null);
    }

    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glDepthMask(true);

    particlesShaderProgram.unbind();
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public MatrixStack(int size) {
    this.size = size;
    this.composeMatrixStack = new Matrix4f[size];
    this.rotationMatrixStack = new Matrix3f[size];
    fill();
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
private void fill() {
    for (int i = 0; i < this.size; i++) {
        composeMatrixStack[i] = new Matrix4f();
        rotationMatrixStack[i] = new Matrix3f();
    }
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public void setTopRotation(Matrix3f rotationMatrix) {
    topRotationMatrix().set(rotationMatrix);
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
/**
 * @return A rotation matrix of the topMatrix matrix.
 */
public Matrix3f topRotationMatrix() {
    return rotationMatrixStack[top];
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public void updateCaches(Matrix4f transformMatrix, Matrix3f rotationMatrix) {
    this.transformCache.set(transformMatrix);
    this.rotationCache.set(rotationMatrix);
    this.dirty = false;
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public Matrix3f getCachedNonrelativeRotation() {
    return rotationCache;
}
 

import org.joml.Matrix3f; //导入依赖的package包/类
public Matrix3f getInertia() {
    return inertia;
}