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How to calculate inverse view projection for a shader?
One to render the mesh with your shadow caster material, with the pass index of the shadow caster pass, and one that’s the stencil pass from the other material. You might be able to stick both in the shadow caster pass and use a pass index of -1, but I’ve never tried that when rendering to depth maps.
Can a drop shadow be an inner shadow?
Even at their most complex, inset box-shadows are pretty easy to wrap your mind around. Toss in the word “inset” and your drop shadow becomes an inner shadow. Super simple. Unfortunately, text-shadow gives us a lot more trouble here. The “inset” value isn’t compatible with text-shadow so something like this simply won’t work:
How does the spread of a shadow work?
As you can see, without affecting how blurry the shadow is, the spread of the shadow essentially grows and shrinks the surface area occupied by the shadow. If you thought of it as the size of the shadow, you wouldn’t be too far off. If you leave off either the blur or spread radius, their values will default to zero.
What’s the best way to set a shadow on an image?
Let’s take a look at two popular solutions. The first solution is to wrap the image in a div that’s constrained to the same size as the image, then set the shadow to that div while using some relative positioning and z-index voodoo on the image itself. Here’s what that looks like in code:
How is shadow receiving calculated in shader unity?
That means the shadow receiving for lights (apart from the main directional light) are going to be calculated as if it’s in that different position. That’s what you’re seeing now.
Can a vertex shader be converted to clip space?
Since surface shaders call UnityObjectToClipPos () automatically, I’m trying to convert to clip space, apply my Z bias, and then convert back to world space in the vertex shader. And it almost works but not quite, the object is displaced and inside out.
What causes shadow to move away from the camera?
If you modify the shadow caster pass to do another offsets there, either the shadow positions move with the objects, meaning they cast in the wrong place (because they too have been moved in 3D space towards the camera) or they self shadow / have no shadow because they’re being pushed away / towards the light.