Let’s make Marv do things

Scaling

Today I updated the scaling part of my vertex shader because it seemed wrong. And it was wrong. Before:

mat4 newmodel = Model;
newmodel[3][3] = Scale;
vWorldPos = newmodel * PosWithBone / Scale;
// output position
gl_Position = Projection * View * newmodel * PosWithBone;

After

// for scaling
PosWithBone.x *= Scale;
PosWithBone.y *= Scale;
PosWithBone.z *= Scale;
vWorldPos = Model * PosWithBone / Scale;
// output position
gl_Position = Projection * View * Model * PosWithBone;

The vWorldPosition is set so the pixel shader knows easily where the world is so I don’t have to send it as a uniform.

Flags

I plan on adding flags for capture the flag. I spent a bit of time on TurboSquid finding some free flags but only one was free in FBX format and it didn’t import properly, so I decided to go with using the dragon FBX, despite it being extrem,ely high poly count. I believe this won’t be a problem but if frame-rates slow down then I’ll just use another random object like soulspear.

Lights and scenes

The light were originally just structs, so I moved them out into their own header and class files for better code standards.

So far here’s what we have:

Playing with fog. Using the z buffer to darken the fragments depending on distance from the camera.

Got a nice specular effect using a normal map created in crazybump.

Marv ready to be animated.

Testing fog colours. Here we have red fog.

Using different textures on the level. Lava texture looks a bit too bright.

Here we see the result of what Marv animated like before I removed the 4th bone transform from the indices. I’m going to assume that that last one is for the transform of the gun Marv is supposed to be holding.