#NETSHADE ANDROID ANDROID#
#NETSHADE ANDROID CODE#

Vec3 ip10 = texture2D(u_Texture, v_TexCoordinate+stp0).rgb Vec3 im10 = texture2D(u_Texture, v_TexCoordinate-stp0).rgb Vec3 ip1m1 = texture2D(u_Texture, v_TexCoordinate+stpm).rgb Vec3 im1p1 = texture2D(u_Texture, v_TexCoordinate-stpm).rgb Vec3 ip1p1 = texture2D(u_Texture, v_TexCoordinate+stpp).rgb Vec3 im1m1 = texture2D(u_Texture, v_TexCoordinate-stpp).rgb Vec3 i00 = texture2D(u_Texture, v_TexCoordinate).rgb Vec3 irgb = texture2D(u_Texture, v_TexCoordinate).rgb Whenever user changes active fragment shader, application recompiles and links it with program, then shows the output. Image processing is done on fragment shader. Vertex shader is used to display the quad and does simple model, view, projection transformation. It does it by loading an image and mapping it as texture on a rectangular plane (a quad).

#NETSHADE ANDROID ANDROID#

Sample demo is Android application that does simple image processing using shader.

#NETSHADE ANDROID CODE#

To test shader code in Android emulator, you must create Android Virtual Device (AVD) with minimum target API Level 15 and select Use Host GPU to enable GPU emulation, otherwise your application may crash. OpenGL ES 2.0 support in Android Virtual Device is available with Android API level 15 release. GLES20.glDrawElements(GLES20.GL_TRIANGLES, 6, GLES20.GL_UNSIGNED_SHORT, indexBuffer) Running Shader on Android Virtual Device We use 2 triangles to draw a quad with each triangle that consists of 3 indices. GLES20.glEnableVertexAttribArray(g_posHandle) DrawДЄfter vertex buffer filled, texture is set and model, view, projection transformation, we need to draw quad using glDrawElements(). GLES20.glVertexAttribPointer(g_posHandle, Both methods return handle to variable location.Д¬opy Code // Pass in the position information First parameter is program handle and second parameter is string name of variables as written in shader source code. To copy data into uniform variables or attribute variables, you need to get handle to location of that uniform or attribute using glGetUniformLocation() than glGetAttribLocation() that previously bound to program. GLES20.glGetProgramInfoLog(programHandle)) Д«efore you can copy data to program, make sure to activate the program by calling glUseProgram() and pass program handle that you want to make active. GLES20.glGetProgramiv(programHandle, GLES20.GL_LINK_STATUS, linkStatus, 0) get linking status final int linkStatus = new int Bind attributes if (attributes != null) GLES20.glAttachShader(programHandle, pxlShader) GLES20.glAttachShader(programHandle, vtxShader) Int programHandle=GLES20.glCreateProgram() Copy Code public static int createProgram( final int vtxShader, final int pxlShader,

Netshade android