Eaglercraft runs on , not Java and OpenGL. Traditional shader mods (OptiFine, Iris) cannot be ported directly. What Eaglercraft Can Do (WebGL Shaders) Eaglercraft uses WebGL shaders internally for its rendering pipeline. These are written in GLSL ES (OpenGL ES Shading Language) , not the full GLSL used by Java Minecraft.
if (edge > 0.2) gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0); // Black outline else gl_FragColor = center; shaders for eaglercraft
// Sample neighboring pixels vec4 center = texture2D(u_texture, v_texCoord); vec4 left = texture2D(u_texture, v_texCoord - vec2(texelSize.x, 0.0)); vec4 right = texture2D(u_texture, v_texCoord + vec2(texelSize.x, 0.0)); vec4 up = texture2D(u_texture, v_texCoord - vec2(0.0, texelSize.y)); vec4 down = texture2D(u_texture, v_texCoord + vec2(0.0, texelSize.y)); Eaglercraft runs on , not Java and OpenGL