1
vote
2answers
84 views

How to use blender files in your own engine?

It is not trivial to use your own shader on blender, so I've created a good-looking webgl shader. Now, what do I need to use the things I made in blender on it? An obvious first idea would be to parse ...
0
votes
1answer
44 views

How to change colors of texture in lwjgl? [duplicate]

I have the following texture: The black pixels are characters, the background is transparent. How do I change the black pixels of the characters to another color? I use this texture as a bitmap for ...
1
vote
1answer
45 views

SetFloat() in HLSL shader (effect) has no effect - variables stay at 0

I have a problem wherein I'm trying to set two simple float variables in my shader. I have a dozen other shaders in this project where it works fine, but for some reason, I've got a bug in this one ...
1
vote
1answer
114 views

Draw character silhouette when not visible

I have a mesh representing my character. I want to give it a partially transparent greyish silhouette when other objects are blocking it from view of the camera. I'm using Ogre3D, and GLSL as a ...
1
vote
0answers
92 views

Shadow mapping implementation not working?

I am trying to implement Shadow Mapping in my program using Java/LWJGL/OpenGL/GLSL, but I cannot get it to work properly. Let's start off with a screenshot first, then the relevant code and lastly ...
8
votes
3answers
646 views

How can I draw outlines around 3D models?

How can I draw outlines around 3D models? I'm referring to something like the effects in a recent Pokemon game, which appear to have a single-pixel outline around them:
1
vote
1answer
100 views

What causes still objects have lines in them when lighting is being changed? [duplicate]

First, here is what I'm talking about (I changed the contrast to make it more visable, since it's not really visible in still images): Ingore the chat box, I was spamming buttons to see which one ...
11
votes
1answer
4k views

How do I create a cel-shaded cartoon look?

I am interested in everything related to this kind of effect (modeling, game engine, animation). What sort of stuff is needed? Here are some sample images of what I mean:
11
votes
1answer
878 views

Toon/cel shading with variable line width?

I see a few broad approaches out there to doing cel shading: Duplication & enlargement of model with flipped normals (not an option for me) Sobel filter / fragment shader approaches to edge ...
13
votes
1answer
468 views

Suitability of ground fog using layered alpha quads?

A layered approach would use a series of massive alpha-textured quads arranged parallel to the ground, intersecting all intervening terrain geometry, to provide the illusion of ground fog quite ...
3
votes
1answer
394 views

Where is the Shader Designer in Visual Studio?

I have Visual Studio 2012 Ultimate and I've been trying to access the Shader Designer. I searched through MSDN's text and Channel9's videos, but they keep failing to mention how to access it. Can ...
7
votes
1answer
2k views

GLSL, all in one or many shader programs?

I am doing some 3D demos using OpenGL and I noticed that GLSL is somewhat "limited" (or is it just me?). Anyway I have many different types of materials. Some materials have ambient and diffuse color, ...
11
votes
4answers
2k views

Fixed-Function vs Shaders: Which for beginner?

I'm currently going to college for computer science. Although I do plan on utilizing an existing engine at some point to create a small game, my aim right now is towards learning the fundamentals: ...
8
votes
3answers
640 views

What exactly can shaders be used for?

I'm not really a 3D person, and I've only used shaders a little in some Three.js examples, and so far I've got an impression that they are only being used for the graphical part of the equation. ...
11
votes
3answers
3k views

Why do pixel shaders not let us read directly from the framebuffer or the depth buffer?

Letting me sample the framebuffer or the depthbuffer in the pixel shader would be an extremely useful feature. Even just being able to know the depth or the color of whatever is behind the current ...
1
vote
2answers
419 views

OpenGL ES multiple indices

I need suggestions for the best method of acheiving what I am trying to do: -Using either OpenGL ES 1.x or 2.x I need to pass a bunch of vertices to the GPU. Each one has 3 attributes: Position, ...
1
vote
1answer
459 views

OpenGL ES indices optimization

I am using OpenGL ES 1.x/2.x I have 2 attributes to be passed to the GPU(one is colors, one is vertices, one color per vertex). I use indices. Both attributes will use the same indices array This ...
12
votes
3answers
15k views

Fastest way to draw quads in OpenGL ES?

I am using OpenGL ES 2.0 I have a bunch a quads to be drawn, would love to be able to have to pass only 4 vertices per quad as if I were using GL_QUADS, but basically I just want to know the best way ...
8
votes
4answers
655 views

I need help with 3d shading/lighting

How do you guys handle shading in a 3d game? I have a directional light source that shades one side of a tree made of cubes. The remaining 3 sides all get ambient shading only. So the 3d effect is ...
6
votes
3answers
1k views

What are the big advantages of shaders ? What is doable with them, and what can't be done without them?

I don't really know when vertex and/or pixel shaders became available for consoles and computers, but what could we do without them ? I don't really understand what is achievable with shaders and what ...