Examples with IndexedTrisShader playn.core.gl.IndexedTrisShader used on opensource projects

Example 1 with IndexedTrisShader

use of playn.core.gl.IndexedTrisShader in project playn by threerings.

the class ShaderTest method init.

protected void init(final Image orange) {
    // add the normal orange
    float dx = orange.width() + 25;
    graphics().rootLayer().addAt(graphics().createImageLayer(orange), 25, 25);
    // add a sepia toned orange
    ImageLayer olayer = graphics().createImageLayer(orange);
    olayer.setShader(createSepiaShader());
    graphics().rootLayer().addAt(olayer, 25 + dx, 25);
    // create a shader that rotates things around the (3D) y axis
    IndexedTrisShader rotShader = new IndexedTrisShader(graphics().ctx()) {

        @Override
        protected String vertexShader() {
            return VERT_UNIFS + "uniform float u_Angle;\n" + "uniform vec2 u_Eye;\n" + VERT_ATTRS + PER_VERT_ATTRS + VERT_VARS + "void main(void) {\n" + // Rotate the vertex per our 3D rotation
            "  float cosa = cos(u_Angle);\n" + "  float sina = sin(u_Angle);\n" + "  mat4 rotmat = mat4(\n" + "    cosa, 0, sina, 0,\n" + "    0,    1, 0,    0,\n" + "   -sina, 0, cosa, 0,\n" + "    0,    0, 0,    1);\n" + "  vec4 pos = rotmat * vec4(a_Position - u_Eye, 0, 1);\n" + // Perspective project the vertex back into the plane
            "  mat4 persp = mat4(\n" + "    1, 0, 0, 0,\n" + "    0, 1, 0, 0,\n" + "    0, 0, 1, -1.0/200.0,\n" + "    0, 0, 0, 1);\n" + "  pos = persp * pos;\n" + "  pos /= pos.w;\n" + "  pos += vec4(u_Eye, 0, 0);\n;" + // Transform the vertex per the normal screen transform
            "  mat4 transform = mat4(\n" + "    a_Matrix[0],      a_Matrix[1],      0, 0,\n" + "    a_Matrix[2],      a_Matrix[3],      0, 0,\n" + "    0,                0,                1, 0,\n" + "    a_Translation[0], a_Translation[1], 0, 1);\n" + "  pos = transform * pos;\n" + "  pos.x /= (u_ScreenSize.x / 2.0);\n" + "  pos.y /= (u_ScreenSize.y / 2.0);\n" + "  pos.z /= (u_ScreenSize.y / 2.0);\n" + "  pos.x -= 1.0;\n" + "  pos.y = 1.0 - pos.y;\n" + "  gl_Position = pos;\n" + VERT_SETTEX + VERT_SETCOLOR + "}";
        }

        @Override
        protected Core createTextureCore() {
            return new RotCore(vertexShader(), textureFragmentShader());
        }

        class RotCore extends ITCore {

            private final Uniform1f uAngle = prog.getUniform1f("u_Angle");

            private final Uniform2f uEye = prog.getUniform2f("u_Eye");

            public RotCore(String vertShader, String fragShader) {
                super(vertShader, fragShader);
            }

            @Override
            public void activate(int fbufWidth, int fbufHeight) {
                super.activate(fbufWidth, fbufHeight);
                uAngle.bind(elapsed * FloatMath.PI);
                uEye.bind(0, orange.height() / 2);
            }
        }
    };
    // add an image that is rotated around the (3D) y axis
    CanvasImage image = graphics().createImage(orange.width(), orange.height());
    image.canvas().setFillColor(0xFF99CCFF);
    image.canvas().fillRect(0, 0, image.width(), image.height());
    image.canvas().drawImage(orange, 0, 0);
    ImageLayer rotlayer = graphics().createImageLayer(image);
    rotlayer.setShader(rotShader);
    graphics().rootLayer().addAt(rotlayer, 25 + 2 * dx + orange.width(), 25);
    // add an immediate layer that draws a quad and an image (which should rotate)
    ImmediateLayer irotlayer = graphics().createImmediateLayer(new ImmediateLayer.Renderer() {

        public void render(Surface surf) {
            surf.setFillColor(0xFFCC99FF);
            surf.fillRect(0, 0, orange.width(), orange.height());
            surf.drawImage(orange, 0, 0);
        }
    });
    irotlayer.setShader(rotShader);
    graphics().rootLayer().addAt(irotlayer, 25 + 3 * dx + orange.width(), 25);
}

Example 2 with IndexedTrisShader

use of playn.core.gl.IndexedTrisShader in project playn by threerings.

the class IOSGLContext method viewDidInit.

void viewDidInit(int defaultFramebuffer) {
    this.defaultFramebuffer = defaultFramebuffer;
    GL.Disable(EnableCap.wrap(EnableCap.CullFace));
    GL.Enable(EnableCap.wrap(EnableCap.Blend));
    GL.BlendFunc(BlendingFactorSrc.wrap(BlendingFactorSrc.One), BlendingFactorDest.wrap(BlendingFactorDest.OneMinusSrcAlpha));
    GL.ClearColor(0, 0, 0, 1);
    quadShader = createQuadShader();
    trisShader = new IndexedTrisShader(this);
}