Look my simple c implementation function to load texture. GLuint LoadTexture( const char * filename ) { GLuint texture; int width, height; unsigned char * data; FILE * file; file = fopen( filename, “rb” ); if ( file == NULL ) return 0; width = 1024; height = 512; data = (unsigned char *)malloc( width … Read more
an image in the /drawable/ folder without any specification is considered to be the “default”, that is for 1dp = 1px that is mpdi, then because the device you’re actually running is xxhdpi that image get’s scaled up during runtime. The original image might be 960×1440, but the conversion from mdpi to xxhdpi is 3 … Read more
When checking for errors, I get [EDIT:] 1282 (“invalid operation”). I take this to mean that the OpenGL is still using OpenGL 2 for glTexImage2D, and so the call is failing. OpenGL errors are not that complex to understand. GL_INVALID_ENUM/VALUE are thrown when you pass something an enum or value that is unexpected, unsupported, or … Read more
Not really an answer (as the code will be rewritten anyway) so few hints for the new code instead (some of them are already mentioned in the comments). Tileset In the final isometric engine use sprites. They are faster and support pixel art. For my purposes I use compilation of these two free to use … Read more
You’re running into depth buffer issues, it has nothing to do with your shader or blend modes. What’s happening is that the order that you render your transparent geometry in is affecting your ability to render behind it. This is because the depth buffer has no concept of transparent or non-transparent. As a result, even … Read more
Apologies; typing on an iPhone so I’ll be a little brief. Create an AVURLAsset with the URL of your video – which can be a local file URL if you like. Anything QuickTime can do is fine, so MOV or M4V in H.264 is probably the best source. Query the asset for tracks of type … Read more
There is a hardware limitation on the texture sizes. To manually look them up, you can go to a site such as glbenchmark.com (Here displaying details about google galaxy nexus). To automatically find the maximum size from your code, you can use something like: int[] max = new int[1]; gl.glGetIntegerv(GL10.GL_MAX_TEXTURE_SIZE, max, 0); //put the maximum … Read more
There are mainly four texture compression types supported on Android: ETC1 (Ericsson texture compression). This format is supported by all Android phones. But, it doesn’t support an alpha channel, so can only be used for opaque textures. PVRTC (PowerVR texture compression). Supported by devices with PowerVR GPUs (Nexus S, Kindle fire, etc.). ATITC (ATI texture … Read more
When I compared your code with mine working engine I see these differences so try them one by one: texture format you are using: glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, screen_width, screen_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); so merging all your to: GL_COLOR_ATTACHMENT0: GL_RGBA,GL_RGBA,GL_UNSIGNED_BYTE GL_COLOR_ATTACHMENT1: GL_RGBA,GL_RGBA,GL_UNSIGNED_BYTE I am using: GL_COLOR_ATTACHMENT0 : GL_RGBA , GL_RGBA8 , GL_UNSIGNED_BYTE GL_DEPTH_ATTACHMENT : GL_DEPTH_COMPONENT, … Read more
Use ShaderMaterial and set both textures as uniforms, and then blend them within shader. I made this example: http://abstract-algorithm.com/three_sh/ and that really should be enough. So, you make ShaderMaterial: var vertShader = document.getElementById(‘vertex_shh’).innerHTML; var fragShader = document.getElementById(‘fragment_shh’).innerHTML; var attributes = {}; // custom attributes var uniforms = { // custom uniforms (your textures) tOne: { … Read more