digitalmars.D.learn - Loading Textures in OpenGL
- Ruby The Roobster (73/73) Jul 23 2023 I'm currently trying to load two textures and apply them to a
- Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (5/10) Jul 23 2023 DCV uses gamut for image input, and opengl for displaying stuff.
- Ruby The Roobster (4/17) Jul 23 2023 Thank you. I'm still trying to work out how it works. It seems
- Ruby The Roobster (4/24) Jul 23 2023 I think I found the problem: It IS the flags I set. Saving the
- Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (4/24) Jul 23 2023 It is me who did it. I was getting some weirdly distorted images.
- Ruby The Roobster (3/12) Jul 23 2023 Ah. Anyhow, I fixed it. I had to use .scanline to fill the
- Ferhat =?UTF-8?B?S3VydHVsbXXFnw==?= (2/15) Jul 23 2023 Nice to hear that.
I'm currently trying to load two textures and apply them to a rectangle, following [this](https://learnopengl.com/Getting-started/Textures) which is linked to from the README file of the bindbc OpenGL bindings. I'm using Gamut to load the files, with the file: ```d module texture; import gamut; import bindbc.opengl; import bindbc.glfw; debug import std.stdio; private __gshared Image[] _textures; private __gshared char[][] texData; public __gshared uint[] textures; void newTexture(in string filename, out int width, out int hight, out int nrChannels) { auto k = ++_textures.length; _textures[k-1].loadFromFile(filename); if(_textures[k-1].isError) throw new Exception(_textures[$-1].errorMessage.idup); if(_textures[k-1].type != PixelType.rgb8 && _textures[k-1].type != PixelType.rgba8) throw new Exception("invalid pixel type"); width = _textures[k-1].width; hight = _textures[k-1].height; nrChannels = 3; // May change later, we'll see _textures[k-1].setSize(width, hight, _textures[k-1].type, LAYOUT_GAPLESS | LAYOUT_VERT_STRAIGHT); auto u = ++texData.length; texData[u-1] = cast(char[])_textures[k-1].allPixelsAtOnce; debug writeln(texData[u-1]); textures.length++; glGenTextures(1, &textures[k-1]); glBindTexture(GL_TEXTURE_2D, textures[k-1]); // Set wrapping & filtering options glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // Bind the texture; if(texData[u-1]) { switch(_textures[k-1].type) { case PixelType.rgb8: glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, hight, 0, GL_RGB, GL_UNSIGNED_BYTE, texData[u-1].ptr); glGenerateMipmap(GL_TEXTURE_2D); break; case PixelType.rgba8: glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, hight, 0, GL_RGBA, GL_UNSIGNED_BYTE, texData[u-1].ptr); glGenerateMipmap(GL_TEXTURE_2D); break; default: } } else { throw new Exception("Failed to load texture: " ~ filename); } _textures[k-1] = Image.init; texData[u-1] = [][]; } ``` I presume that I am messing up with reading the pixels, but I don't see how. Does LAYOUT_GAPLESS | LAYOUT_VERT_STRAGIHT really have that great of an effect?
Jul 23 2023
On Sunday, 23 July 2023 at 16:21:05 UTC, Ruby The Roobster wrote:I'm currently trying to load two textures and apply them to a rectangle, following [this](https://learnopengl.com/Getting-started/Textures) which is linked to from the README file of the bindbc OpenGL bindings. [...]DCV uses gamut for image input, and opengl for displaying stuff. You can take a look at the sources: https://github.com/libmir/dcv/blob/master/source/dcv/imageio/image.d#L399 https://github.com/libmir/dcv/blob/master/source/dcv/plot/drawprimitives.d#L126
Jul 23 2023
On Sunday, 23 July 2023 at 17:02:40 UTC, Ferhat Kurtulmuş wrote:On Sunday, 23 July 2023 at 16:21:05 UTC, Ruby The Roobster wrote:Thank you. I'm still trying to work out how it works. It seems as if the creator tried the same thing that I did, and then commented it out. Perhaps for the same reason?I'm currently trying to load two textures and apply them to a rectangle, following [this](https://learnopengl.com/Getting-started/Textures) which is linked to from the README file of the bindbc OpenGL bindings. [...]DCV uses gamut for image input, and opengl for displaying stuff. You can take a look at the sources: https://github.com/libmir/dcv/blob/master/source/dcv/imageio/image.d#L399 https://github.com/libmir/dcv/blob/master/source/dcv/plot/drawprimitives.d#L126
Jul 23 2023
Ruby The Roobster <michaeleverestc79 gmail.com> On Sunday, 23 July 2023 at 17:35:03 UTC, Ruby The Roobster wrote:On Sunday, 23 July 2023 at 17:02:40 UTC, Ferhat Kurtulmuş wrote:I think I found the problem: It IS the flags I set. Saving the image gives a blank PNG file, though it doesn't explain why I get noise at the bottom of the rectangle.On Sunday, 23 July 2023 at 16:21:05 UTC, Ruby The Roobster wrote:Thank you. I'm still trying to work out how it works. It seems as if the creator tried the same thing that I did, and then commented it out. Perhaps for the same reason?I'm currently trying to load two textures and apply them to a rectangle, following [this](https://learnopengl.com/Getting-started/Textures) which is linked to from the README file of the bindbc OpenGL bindings. [...]DCV uses gamut for image input, and opengl for displaying stuff. You can take a look at the sources: https://github.com/libmir/dcv/blob/master/source/dcv/imageio/image.d#L399 https://github.com/libmir/dcv/blob/master/source/dcv/plot/drawprimitives.d#L126
Jul 23 2023
On Sunday, 23 July 2023 at 17:35:03 UTC, Ruby The Roobster wrote:On Sunday, 23 July 2023 at 17:02:40 UTC, Ferhat Kurtulmuş wrote:It is me who did it. I was getting some weirdly distorted images. And you see my final solution. I am writing on my mobil so cannot help you further.On Sunday, 23 July 2023 at 16:21:05 UTC, Ruby The Roobster wrote:Thank you. I'm still trying to work out how it works. It seems as if the creator tried the same thing that I did, and then commented it out. Perhaps for the same reason?I'm currently trying to load two textures and apply them to a rectangle, following [this](https://learnopengl.com/Getting-started/Textures) which is linked to from the README file of the bindbc OpenGL bindings. [...]DCV uses gamut for image input, and opengl for displaying stuff. You can take a look at the sources: https://github.com/libmir/dcv/blob/master/source/dcv/imageio/image.d#L399 https://github.com/libmir/dcv/blob/master/source/dcv/plot/drawprimitives.d#L126
Jul 23 2023
On Sunday, 23 July 2023 at 17:45:53 UTC, Ferhat Kurtulmuş wrote:On Sunday, 23 July 2023 at 17:35:03 UTC, Ruby The Roobster [SNIP]Ah. Anyhow, I fixed it. I had to use .scanline to fill the Image data, but in the end it worked. Thank you very much.Thank you. I'm still trying to work out how it works. It seems as if the creator tried the same thing that I did, and then commented it out. Perhaps for the same reason?It is me who did it. I was getting some weirdly distorted images. And you see my final solution. I am writing on my mobil so cannot help you further.
Jul 23 2023
On Sunday, 23 July 2023 at 18:06:46 UTC, Ruby The Roobster wrote:On Sunday, 23 July 2023 at 17:45:53 UTC, Ferhat Kurtulmuş wrote:Nice to hear that.On Sunday, 23 July 2023 at 17:35:03 UTC, Ruby The Roobster [SNIP]Ah. Anyhow, I fixed it. I had to use .scanline to fill the Image data, but in the end it worked. Thank you very much.Thank you. I'm still trying to work out how it works. It seems as if the creator tried the same thing that I did, and then commented it out. Perhaps for the same reason?It is me who did it. I was getting some weirdly distorted images. And you see my final solution. I am writing on my mobil so cannot help you further.
Jul 23 2023