and fix to use shininess

game/modules/tome/data/gfx/particles/circle.lua

@@ -21,7 +21,11 @@ base_size = 64
 
 local shader = shader or false
 
-if shader then use_shader = {type="volumetric_aura"} end
+if core.shader.active(4) then
+	if shader then use_shader = {type="volumetric_aura"} end
+else
+	shader = false
+end
 
 local speed = speed or 0.023
 local a = (a or 60) / 255
@@ -37,7 +41,7 @@ if grow then grow = basesize / limit_life end
 local nb = empty_start and -1 or 0
 
 return {
-	blend_mode = shader and core.particles.BLEND_ADDITIVE or nil,
+	blend_mode = shader and core.particles.BLEND_SHINY or nil,
 	system_rotation = base_rot or rng.range(0, 360), system_rotationv = speed,
 	generator = function()
 	if nb == -1 then

game/modules/tome/data/gfx/particles/golden_shield.lua

@@ -19,7 +19,7 @@
 
 base_size = 32
 
-return { blend_mode=core.particles.BLEND_ADDITIVE, generator = function()
+return { blend_mode=core.particles.BLEND_SHINY, generator = function()
 	local ad = rng.range(0, 360)
 	local a = math.rad(ad)
 	local dir = math.rad(ad + 90)

game/modules/tome/data/gfx/particles/inferno.lua

@@ -19,7 +19,7 @@
 
 base_size = 32
 
-return { blend_mode=core.particles.BLEND_ADDITIVE, generator = function()
+return { blend_mode=core.particles.BLEND_SHINY, generator = function()
 	local ad = rng.range(20+90, 160+90)
 	local a = math.rad(ad)
 	local dir = math.rad(ad + 90)

game/modules/tome/data/gfx/particles/mucus.lua

@@ -21,7 +21,7 @@ base_size = 64
 
 local nb = 0
 
-return { blend_mode=core.particles.BLEND_ADDITIVE, generator = function()
+return { blend_mode=core.particles.BLEND_SHINY, generator = function()
 	local ad = rng.range(0, 360)
 	local a = math.rad(ad)
 	local dir = math.rad(ad)

game/modules/tome/data/gfx/particles/ooze_beam.lua

@@ -67,7 +67,7 @@ end
 local nbp = #points
 
 -- Populate the lightning based on the forks
-return { blend_mode=core.particles.BLEND_ADDITIVE, engine=core.particles.ENGINE_LINES, generator = function()
+return { blend_mode=core.particles.BLEND_SHINY, engine=core.particles.ENGINE_LINES, generator = function()
 	local p = table.remove(points, 1)
 
 	return {

game/modules/tome/data/gfx/particles/shader_ring_rotating.lua

@@ -22,7 +22,7 @@ base_size = 32
 local nb = 0
 
 return {
-	blend_mode=additive and core.particles.BLEND_ADDITIVE or nil,
+	blend_mode=additive and core.particles.BLEND_SHINY or nil,
 	system_rotation = 0, system_rotationv = rotation or 0.3,
 	generator = function()
 	local fs = 38 * (radius or 1)

game/modules/tome/data/gfx/particles/shader_shield.lua

@@ -24,7 +24,7 @@ local g = 1
 local b = 1
 local a = a or 1
 
-return { blend_mode = blend and core.particles.BLEND_ADDITIVE or nil, generator = function()
+return { blend_mode = blend and core.particles.BLEND_SHINY or nil, generator = function()
 	return {
 		trail = 0,
 		life = 10,

game/modules/tome/data/gfx/particles/shout.lua

@@ -54,7 +54,7 @@ local nbp = #points
 
 -- Populate the lightning based on the forks
 return { 
-blend_mode=additive and core.particles.BLEND_ADDITIVE or nil,
+blend_mode=additive and core.particles.BLEND_SHINY or nil,
 engine=core.particles.ENGINE_LINES,
 generator = function()
 	local p = table.remove(points, 1)

game/modules/tome/data/gfx/shaders/volumetric_aura.frag

@@ -46,6 +46,7 @@ void main(void)
 	}
 	float shininessOpacity = 0.0;
 	gl_FragColor = vec4(emittedColor.rgb, 1.0 - absorb + (emittedColor.r + emittedColor.g + emittedColor.b) * shininessOpacity);
+	gl_FragColor.a *= gl_Color.a;
 }