Examples with VertexAttribute com.badlogic.gdx.graphics.VertexAttribute used on opensource projects

Example 26 with VertexAttribute

use of com.badlogic.gdx.graphics.VertexAttribute in project libgdx by libgdx.

the class FloatTextureTest method createQuad.

private void createQuad() {
    if (quad != null)
        return;
    quad = new Mesh(true, 4, 6, new VertexAttribute(Usage.Position, 3, "a_position"), new VertexAttribute(Usage.ColorUnpacked, 4, "a_color"), new VertexAttribute(Usage.TextureCoordinates, 2, "a_texCoords"));
    quad.setVertices(new float[] { -1, -1, 0, 1, 1, 1, 1, 0, 1, 1, -1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, -1, 1, 0, 1, 1, 1, 1, 0, 0 });
    quad.setIndices(new short[] { 0, 1, 2, 2, 3, 0 });
}

Example 27 with VertexAttribute

use of com.badlogic.gdx.graphics.VertexAttribute in project libgdx by libgdx.

the class MipMap2D method create.

@Override
public void create() {
    String vertexShader = "uniform float u_offset;      \n" + "attribute vec4 a_position;   \n" + "attribute vec2 a_texCoord;   \n" + "varying vec2 v_texCoord;     \n" + "void main()                  \n" + "{                            \n" + "   gl_Position = a_position; \n" + "   gl_Position.x += u_offset;\n" + "   v_texCoord = a_texCoord;  \n" + "}                            \n";
    String fragmentShader = "#ifdef GL_ES\n" + "precision mediump float;\n" + "#endif\n" + "varying vec2 v_texCoord;                            \n" + "uniform sampler2D s_texture;                        \n" + "void main()                                         \n" + "{                                                   \n" + "  gl_FragColor = texture2D( s_texture, v_texCoord );\n" + "}                                                   \n";
    shader = new ShaderProgram(vertexShader, fragmentShader);
    mesh = new Mesh(true, 4, 6, new VertexAttribute(Usage.Position, 4, "a_position"), new VertexAttribute(Usage.TextureCoordinates, 2, "a_texCoord"));
    float[] vertices = { // Position 0
    -0.5f, // Position 0
    0.5f, // Position 0
    0.0f, // Position 0
    1.5f, // TexCoord 0
    0.0f, // TexCoord 0
    0.0f, // Position 1
    -0.5f, // Position 1
    -0.5f, // Position 1
    0.0f, // Position 1
    0.75f, // TexCoord 1
    0.0f, // TexCoord 1
    1.0f, // Position 2
    0.5f, // Position 2
    -0.5f, // Position 2
    0.0f, // Position 2
    0.75f, // TexCoord 2
    1.0f, // TexCoord 2
    1.0f, // Position 3
    0.5f, // Position 3
    0.5f, // Position 3
    0.0f, // Position 3
    1.5f, // TexCoord 3
    1.0f, // TexCoord 3
    0.0f };
    short[] indices = { 0, 1, 2, 0, 2, 3 };
    mesh.setVertices(vertices);
    mesh.setIndices(indices);
    createTexture();
}

Example 28 with VertexAttribute

use of com.badlogic.gdx.graphics.VertexAttribute in project libgdx by libgdx.

the class TextureArrayTest method create.

@Override
public void create() {
    GL30Profiler.enable();
    ShaderProgram.prependVertexCode = Gdx.app.getType().equals(Application.ApplicationType.Desktop) ? "#version 140\n #extension GL_EXT_texture_array : enable\n" : "#version 300 es\n";
    ShaderProgram.prependFragmentCode = Gdx.app.getType().equals(Application.ApplicationType.Desktop) ? "#version 140\n #extension GL_EXT_texture_array : enable\n" : "#version 300 es\n";
    String[] texPaths = new String[] { "data/g3d/materials/Searing Gorge.jpg", "data/g3d/materials/Lava Cracks.jpg", "data/g3d/materials/Deep Fire.jpg" };
    camera = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
    camera.position.set(8, 10f, 20f);
    camera.lookAt(10, 0, 10);
    camera.up.set(0, 1, 0);
    camera.update();
    cameraController = new FirstPersonCameraController(camera);
    Gdx.input.setInputProcessor(cameraController);
    textureArray = new TextureArray(texPaths);
    textureArray.setWrap(Texture.TextureWrap.Repeat, Texture.TextureWrap.Repeat);
    shaderProgram = new ShaderProgram(Gdx.files.internal("data/shaders/texturearray.vert"), Gdx.files.internal("data/shaders/texturearray.frag"));
    System.out.println(shaderProgram.getLog());
    int vertexStride = 6;
    int vertexCount = 100 * 100;
    terrain = new Mesh(false, vertexCount * 6, 0, new VertexAttributes(VertexAttribute.Position(), new VertexAttribute(VertexAttributes.Usage.TextureCoordinates, 3, ShaderProgram.TEXCOORD_ATTRIBUTE + 0)));
    Pixmap data = new Pixmap(Gdx.files.internal("data/g3d/heightmap.png"));
    float[] vertices = new float[vertexCount * vertexStride * 6];
    int idx = 0;
    for (int i = 0; i < 100 - 1; i++) {
        for (int j = 0; j < 100 - 1; j++) {
            idx = addVertex(i, j, vertices, data, idx);
            idx = addVertex(i, j + 1, vertices, data, idx);
            idx = addVertex(i + 1, j, vertices, data, idx);
            idx = addVertex(i, j + 1, vertices, data, idx);
            idx = addVertex(i + 1, j + 1, vertices, data, idx);
            idx = addVertex(i + 1, j, vertices, data, idx);
        }
    }
    terrain.setVertices(vertices);
    data.dispose();
}

Example 29 with VertexAttribute

use of com.badlogic.gdx.graphics.VertexAttribute in project libgdx by libgdx.

the class btIndexedMesh method set.

/** Convenience method to set this btIndexedMesh to the specified {@link Mesh} 
	 * The specified mesh must be indexed and triangulated and must outlive this btIndexedMesh.
	 * The buffers for the vertices and indices are shared amonst both. */
public void set(final Object tag, final Mesh mesh, int offset, int count) {
    if ((count <= 0) || ((count % 3) != 0))
        throw new com.badlogic.gdx.utils.GdxRuntimeException("Mesh must be indexed and triangulated");
    VertexAttribute posAttr = mesh.getVertexAttribute(Usage.Position);
    if (posAttr == null)
        throw new com.badlogic.gdx.utils.GdxRuntimeException("Mesh doesn't have a position attribute");
    set(tag, mesh.getVerticesBuffer(), mesh.getVertexSize(), mesh.getNumVertices(), posAttr.offset, mesh.getIndicesBuffer(), offset, count);
}

Example 30 with VertexAttribute

use of com.badlogic.gdx.graphics.VertexAttribute in project libgdx by libgdx.

the class VertexArray method bind.

@Override
public void bind(final ShaderProgram shader, final int[] locations) {
    final int numAttributes = attributes.size();
    byteBuffer.limit(buffer.limit() * 4);
    if (locations == null) {
        for (int i = 0; i < numAttributes; i++) {
            final VertexAttribute attribute = attributes.get(i);
            final int location = shader.getAttributeLocation(attribute.alias);
            if (location < 0)
                continue;
            shader.enableVertexAttribute(location);
            byteBuffer.position(attribute.offset);
            shader.setVertexAttribute(location, attribute.numComponents, attribute.type, attribute.normalized, attributes.vertexSize, byteBuffer);
        }
    } else {
        for (int i = 0; i < numAttributes; i++) {
            final VertexAttribute attribute = attributes.get(i);
            final int location = locations[i];
            if (location < 0)
                continue;
            shader.enableVertexAttribute(location);
            byteBuffer.position(attribute.offset);
            shader.setVertexAttribute(location, attribute.numComponents, attribute.type, attribute.normalized, attributes.vertexSize, byteBuffer);
        }
    }
    isBound = true;
}